Hey Flying, I reckon there isn't a need to be nervous about an AA meeting ! I've been to many in several countries and found them all to be different in character and vibes but ALL follow the same principles of being welcoming to newcomers, being non-judgemental (and after you hear the stories, you will quickly understand why
) and usually very relaxed. I am quite certain they wont hold a gun to your head and say "sign this deed in blood" or "welcome to the cult" or "you must obey "
Think of going to the meeting as a taster. If you dont like it, walk away obligation free.
Stay strong, stay chilled, and stay sober !