What makes you a nerd (specify types of hobbies, interests, etc.)? Don't just say 'My Hobby' or 'Job'. Dig deep, tell us about yourself.
Reading is probably my biggest nerd hobby, I'm a total bookworm. Slowly growing my library, with one of my neatest books being a copy of the Portrait of Dorian Gray from the 1920s.
The rest of my nerdiness is pretty widespread - Harry Potter fanatic, FireFly lover, Scrabble dominator, documentary watcher - I even did a Captain America painting for a friend's birthday after getting introduced to graphic novels.
I didn't get into video games as a kid, but I've found Steam and games like Portal and Civ as an adult and am starting to explore. And I've never had an opportunity to cosplay, but I want to so badly!! I wish I had gotten into comics before ComicCon was such a sh*tshow.
I also work on the people side of things (Organizational/People Development) at a cutting edge tech company (semiconductor capital equipment), which provides the best of both worlds for me.