How do I join AA?

How do I join AA? You are an AA member if and when you say you are. The only requirement for AA membership is a desire to stop drinking (and many of us were not very wholehearted about that when we first approached AA).

What happens if I meet people I know?

What happens if I meet people I know? They will be there for the same reason you are. AA does not disclose your identity even to outsiders or even others inside our fellowship. You retain as much anonymity as you wish. That is one of the reasons we call ourselves Alcoholics Anonymous.