hey dusty... welcome!
my only suggestion would be to start talking. maybe even managing an, "i'm dustyboots, and i don't know what to say, but i'm happy to be here" might open it up enough for some people to come up to you after the meeting to welcome you.
i'm uncomfortable talking to people, too... and i found starting out like this (and not instincitively bolting for the door the second the meeting is over) was a good thing for me. most of the people i've met have mentioned that they felt the same way coming in, so that helped me too.
anyway, glad you're here! way to go on getting back into your recovery journey!