This is your club! Anyone can suggest a meetup and specify a date/time to make it happen. If 3 or more members say they'll be there then that's it - it's official. In fact, people who have paid are automatically made to be EVENT ORGANIZERS. However if you take the time to set up the Invite, please ensure you're willing to organize it and answer any questions the other members might have.
Aside from the membership fee, most meetups will be free. Often it will just be an invite to show up at an event that might have some photographic awesomeness about it. Some Meetups require a small payment and should be clearly spelled out in the invite. Model shoots often require a small token for travel and to ensure the models don't flake.
Otherwise that's it! Welcome to the club! Now take a second to upload a photo of yourself (not your cat, please!) and let me know if you need a member album.