Usability

**One of our favorite bands in playing this Friday. Tell them at the gate you are there for the band and they will direct you to the terrace bistro.** **The concert is inside and air conditioned!!!!**

We'll check out Caboose Commons: 2918 Eskridge Rd, Fairfax, VA 22031 This location is 15 min. walk to Dunn Loring metro station. And there are public parkings at Mosaic. Please have a picture profile so we can recognize you in the meetup. Please only sign up if you're sure about attending this meetup, and please update your RSVP as soon as possible if you need to cancel, thank you!

**❤️ DMV PROFESSIONALS SINGLES MIXER (AGES 42–55)** **Real People. Real Conversations. Real Connections.** **Tickets :** https://www.eventbrite.com/e/professionals-single-event-mingles-mixer-real-people-connection-42-55-tickets-1991952765343?aff=meetup Looking to meet accomplished, interesting, and relationship-minded singles in the DMV? Join us for an evening designed specifically for professionals ages 42–55 who are ready to step away from the apps and connect face-to-face. Whether you're newly single, divorced, an empty nester, focused on your career, or simply looking for a more authentic way to meet people, this event offers a welcoming space to build meaningful connections. No endless swiping. No ghosting. No awkward first messages. Just genuine conversations with local singles who value real connection. ━━━━━━━━━━━━━━━━━━ 📍 Location : Finnegan’s Wake Irish Pub 100 Gibbs Street · Rockville, MD 🚇 Metro Access Conveniently located near major Metro lines with nearby parking available. Venue details will be provided upon registration. ━━━━━━━━━━━━━━━━━━ 🎟️ RESERVE EARLY & SAVE ❤️ Early Bird Admission — $15 Limited quantity available. ❤️ General Admission — $20 Available after Early Bird tickets sell out. ❤️ Last Chance / Door Admission — $25 Only available if space remains. ⚠️ Attendance is intentionally limited to create a comfortable and balanced experience. Most Spark Vibe events sell out before the event date. Reserve your spot early and save. ━━━━━━━━━━━━━━━━━━ ✨ WHY ATTEND? Meeting new people shouldn't feel like work. At Spark Vibe, we believe the best connections happen naturally through conversation, shared experiences, and genuine chemistry. This event is designed for professionals who value authenticity, meaningful relationships, and meeting people with similar life experiences and goals. Many attendees are looking for: ❤️ A meaningful relationship 🤝 New friendships and connections 💍 Long-term partnership 🌟 A fun, engaging social experience Whether you're seeking companionship, romance, or simply looking to expand your social circle, you'll be surrounded by people who are open to connecting. ━━━━━━━━━━━━━━━━━━ 🌟 WHAT TO EXPECT 🍸 Relaxed Social Mixer Enjoy a welcoming atmosphere where meeting new people feels comfortable and easy. 💬 Guided Conversations Optional conversation starters and icebreakers help spark meaningful discussions. ⚡ Meet Multiple Singles Connect with local professionals from across DC, Maryland, and Northern Virginia. 🎤 Friendly Event Host Our host will welcome guests, facilitate introductions, and ensure everyone feels included. ✨ Genuine Connections Skip the screens and experience what dating feels like in real life. ━━━━━━━━━━━━━━━━━━ ❤️ PERFECT FOR SINGLES WHO ARE ✅ Tired of dating apps ✅ Looking for meaningful connections ✅ Interested in meeting local professionals ✅ Newly single or re-entering the dating world ✅ Open to friendship, dating, or a serious relationship ✅ Ready to meet people face-to-face ━━━━━━━━━━━━━━━━━━ 🌟 WHY PEOPLE LOVE OUR EVENTS Many attendees tell us they meet more quality people in one evening than they have in months online. The conversations are genuine. The atmosphere is welcoming. And everyone is there for the same reason: to connect. Some attendees leave with a date. Others leave with new friends. Everyone leaves having shared memorable conversations. ━━━━━━━━━━━━━━━━━━ ✨ ABOUT THE AGE RANGE This event is designed primarily for singles ages 42–55. The age range is intended as a guideline rather than a strict requirement. If you feel you'd connect well with this group, you're welcome to join us. Our goal is always to create a balanced and enjoyable environment where meaningful connections can happen naturally. ━━━━━━━━━━━━━━━━━━ ⏰ IMPORTANT INFORMATION • Please arrive 10–15 minutes early. • Check-in closes 15 minutes after the event start time. • Most attendees come solo. • Dress code: Smart casual or business casual. • Tickets are limited and often sell out in advance. ━━━━━━━━━━━━━━━━━━ ❤️ STOP SWIPING. START CONNECTING. The best relationships don't begin with an algorithm. They begin with a conversation. Reserve your spot today. Spark Vibe Where Strangers Become Stories.

This Art Walk is a monthly evening dedicated to creativity, connection, and community. Stroll through local galleries and studios, meet artists, enjoy rotating exhibitions, live art, and immersive experiences all while supporting the local arts scene. Come curious, stay inspired. Event details will be in the Ladies Group in WhatsApp. Join here: https://chat.whatsapp.com/H533SlZi8h70XjkN6iSEws?mode=gi_t If you’re having difficulty joining, please send me a direct message.

Ausarian Tantra Yoga is a practice that infuses the spirit and power of enlightenment through synchronizing breath, movement, meditation, and silent affirmation. Ausarian Tantra Yoga incorporates postures that reflect some of the principles of the Kemetic culture. It is a practice wherein gradual and deliberate movement allows moments for the mind, body, and spirit to connect and express oneness. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St Alexandria, VA 22314. Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

Similar to our "Beginner Ride", a casual, on-road-avoiding, cycle-path-winding, beginner friendly, group ride. The ride will be led by Maya and Angie, who have a combined 50 years of cycling experience. This is a no drop ride with an average speed of 7- 12 mph. Please bring a helmet, lights, a snack, hydration and wear appropriate clothing for cooler weather (cotton is not your friend in cooler temps and we will be riding in the dark). The ride can be tailored to the skills that attendees want to master, i.e- drinking from water bottle while riding, making tight turns, riding in a small group and cycling etiquette. We will be riding mainly on trails, streets as minimally as possible, and sidewalks only when necessary. This ride is perfect for someone who hasn't ridden in a while and wants to get some easy miles on the saddle; not just for newbies. If you have not ridden your bike in several weeks, months or years, please have a safety check done before the day of the ride. We are just here to have fun.

This meetup is for people that want to play table games: board games, strategy games, episodic RPGs, eurogames, card games and co-operative games. NOT A GAMER BUT WANT TO LEARN? We teach them all... Melinda is bringing: * 7 Wonders * Architects of the West Kingdom * Azul * Blockus * Cards Against Humanity * Castles of Burgundy * Century - Spice Road * Century - A New World * El Dorado * Ethnos * Harry Potter Clue * Harry Potter - Hogwarts ??? * Ingenious * Its a Wonderul World * King of Tokyo * Parks * Photosynthesis * Quacks of Quedlinburg * Qwirkle * Sherrif of Nottingham * Sagrada * Suburbia * Ticket to Ride - Europe * Ticket To Ride - Nederln * Unearth * Villanous * Villanous Expansion * What do you Meme * Wingspan We are open minded on all games. Games we plan to teach and play include Ascension, Azul, Azul Summer Pavillion, Splendor, Magic The Gathering, Melee/Wizard, Backgammon, Castallan, Chess Variants, Compounded, Dead of Winters: Crossroads, Dixit, Dominion, Exploding Kittens, Flux, GravWell, Ghost Stories, Hanabi, Heroquest RPG, Hive, House Divided, House on the Hill, Illuminati, Ingenious, King of Tokyo, Lost Cities, Machi Koro, Munchkin, Pandemic, Pirate Dice, Ogre/GEV, Qwirkle, Race for the Galaxy, Roll Through The Ages, Ricochet Robot, RoboRally, Settlers of Catan, Sagrada, Sentinels of the Multiverse, Splendor, Spot-It, Sushi-To-Go, Takenoko, Ticket to Ride, Tsuro, Up Front, Yahtzee, Advanced Wizards Card Game, etc.

It's going to be hot! Let's stay inside and meet at Blue Bottle Cafe at Union Station. Between the architecture and the people, we will have plenty of inspiration. There is also an ongoing exhibit of cars from Ford for the [Ford USA 250 exhibition](https://fordauthority.com/2026/07/ford-usa-250-celebration-features-some-amazing-vehicles/), which might inspire your drawings!

[https://ridewithgps.com/routes/45899232](https://ridewithgps.com/routes/45899232) 26.1 miles. Lunch is at the Great Falls overlook 18.2 miles into the ride. There are toilets at Great Falls and Fletchers' Boathouse. We will e-bike from Glen Echo Park in Maryland to the majestic Great Falls. We will be biking on the Capital Crescent Trail, the C&O Canal pathway, and McArthur Blvd with separate biking lanes. This tour captures the essence of adventure and natural beauty. We will be meandering alongside the serene Potomac River and the C&O Canal, offering E-bike Lovers an unparalleled opportunity to immerse themselves in the lush landscapes that define this region. Glen Echo Park, with its rich tapestry of cultural and artistic heritage, serves as the perfect prologue to a journey that gradually unfolds into the wild, untamed beauty of the Great Falls. The route is just over 26 miles on gravel and asphalt. The gravel is compact. If you don't like the gravel on the C&O Canal pathway, this is not your route. Entrance to the Great Falls National Park is for free as we enter from the C&O Canal. We park at the large parking lot off Oxford Street, NOT at the smaller lot at McArthur Blvd. Please bring snacks, lunch and plenty of water. FYI: Ride With GPS E-bike Lovers Club membership is now for free as [www.ebikelovers.com](http://www.ebikelovers.com/) generates sufficient income from ads to cover the costs. Here is the link to activate your free membership: [https://ridewithgps.com/auto_approve/Club/6746/Zwa5jhttF5mJrFbN](https://ridewithgps.com/auto_approve/Club/6746/Zwa5jhttF5mJrFbN) The group stops a few times for slower riders to catch up. **REMEMBER:** This is a self-guided event. This event empowers each participant to take the lead, as there are no designated bike leaders within E-bike Lovers. We all embrace the role of leaders in this self-guided experience. Please RSVP only if you are coming so we know how many E-bike Lovers will participate. We enjoy a nearly 100% RSVP success rate. Thank you so much for your help! As usual, non-assisted bikers are most welcome. DISCLAIMER LIMITATION OF LIABILITY: TO THE FULLEST EXTENT PERMISSIBLE PURSUANT TO APPLICABLE LAW, NEITHER GREGORY MAASSEN, NATHAN MERRIS, RICHARD CAMER TRIP COORDINATORS, THEIR AFFILIATES, FAMILY AND FORMER AND CURRENT EMPLOYERS NOR ANY OTHER PARTY INVOLVED IN CREATING, PRODUCING, OR DELIVERING E-BIKE LOVERS GUIDES, OUR MEETUP EVENTS, AND THE GPS E-TRAILS IS LIABLE FOR ANY DIRECT, INCIDENTAL, CONSEQUENTIAL, INDIRECT, EXEMPLARY, OR PUNITIVE DAMAGES ARISING OUT OF A USER’S ACCESS TO, OR USE OF THE E-BIKE LOVERS GUIDES, OUR MEETUP EVENTS, AND THE GPS E-TRAILS. See for the full disclaimer: https://ebikelovers.com/disclaimer

As always, the goal is fun. Beginners are welcome. We play until 5 or 6. Parking (Free): Plenty of free street parking available on Sunday afternoons near the playing area. Contact Organizer for exact address and other helpful details Metro: Foggy Bottom Metro Station is an 8 minute walk

Semper Gumby Ride as I'll be winging it when we get to the Mall. **+++++++++++++++++++++** **The Ride: Summary** **(Must Read)** **+++++++++++++++++++++** * RIDE NAME: Washington Monument Illumination - 250th Anniversary * START LOC: Washington Sailing Marina * START GPS: [https://goo.gl/maps/uGpBoTzjAS8aNDuf8](https://goo.gl/maps/uGpBoTzjAS8aNDuf8) * START PARKING: Main parking lot by the restrooms. * ARRIVAL: 8:30pm * SPEECH: 8:45pm * ROLLING: As soon as the speech is done. * SUNSET: 8:38pm * LEVEL: Beginner(+) Night Ride * DISTANCE: 11.1 miles * PACE: 12-14 mph (casual pace) * TERRAIN: Trail / Street / Bike Lane * RIDEWITHGPS ROUTE: CBG_WASH_MON_LIGHTS_2026 [https://ridewithgps.com/routes/55951287](https://ridewithgps.com/routes/55951287) **NOTE:** * 100 Lumen (or Greater) Front Light (Read all about them here: [https://www.meetup.com/novacbg/events/273787949](https://www.meetup.com/novacbg/events/273787949)) * Red Tail Light * Verify they all have a fresh charge * We will try to keep our bikes with us at the Mall (if you have a convenient bike lock please bring it just in case). **+++++++++++++++++++++** **The Ride : Detail** **+++++++++++++++++++++** For your pleasure NoVA CBG presents .... the Washington Monument Illumination - 250th Anniversary. * **Showtime:** The 18-minute presentation plays on a loop. * **Visuals:** The projection illuminates all four sides of the monument, showcasing the people, places, moments, and ideals that have shaped the nation. * **The Grand Finale:** Each presentation concludes with the entire monument glowing brilliantly like a massive birthday candle. Basic 'unknown' plan. We will ride our bikes from the Washington Sailing Marina to the Mall. My goal is to be in front of the Smithsonian Castle (in some form or fashion). The projection is on an 18 minute loop and begins at 9pm... depending on what time we get there we will hang our for a full loop before heading back home. **+++++++++++++++++++++** **The Meeting Spot:** **+++++++++++++++++++++** Washington Sailing Marina 1 Marina Dr. Alexandria, VA GPS: [https://goo.gl/maps/uGpBoTzjAS8aNDuf8](https://goo.gl/maps/uGpBoTzjAS8aNDuf8) Parking: You can park in the main lot by the restrooms

Be prepared for an entirely different type of sci-fi movie! Unofficially, the second movie in director Lars von Trier's "Depression Trilogy," 2011 Melancholia depicts the events that occur before a rogue planet is about to collide with the earth. Considered by many to be a masterpiece, the film was included in BFI's 2022 Sight and Sound Poll of the greatest movies of all time. It is available at the library as well as on Kanopy.

You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.

Try new games, meet new people, and find out what story games are all about! Explore the reaches of space! Witness kingdoms rise and fall! Create and explore tragedies! All within a single game night. We play story games like Fiasco, Kingdom, Polaris and Microscope that encourage everyone at the table to participate creatively. We also have one-shots of indie, OSR, and narrative-focused RPGs such as Apocalypse World, Dread, Lady Blackbird, and Old School Essentials! Everybody's welcome! It doesn't matter if you've never tried story games before or never played roleplaying games at all! Just bring your brain and a good attitude and come try it out! *** **IMPORTANT** * When you arrive look for the marked Story Games Columbus Tables. Each table will have a separate game. Seating is on a first-come-first-serve basis. * If all tables are full, look for a Facilitator. We will find a way to get you into a game! * There is a flat $3 cover charge for events at Tabletop. *** **Facilitators!!** Please arrive early so that we can get you set up with a table. Please reach out to me ASAP if you would be willing to help facilitate. You can reach me on the SGC Discord here - https://discord.gg/jUTvWUu

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

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