I was too, but my first munch was the May munch which just past. Everyone was really really friendly and it was a great atmosphere. We just sat around, drank, ate and chatted about general stuff. Since it's a public place theres not a whole lot of open chat about diapers, it's just fun!
And if you're worried that you'll get hounded because you're a girl, don't be. There were about 30 people that were there last time and 2 of us were the only straight guys there. And both of us have nothing but respect for everyone who is part of this kink of ours.
I know it'll take some time (believe me, it took me a couple months before I worked up the courage to come out) but once you do, you won't regret it!
-Look forward to meeting you some time!