This room's going to need a lot of corners!
It's hard to say.... Part of me would not want to be shy just because it looks funny if all of us were in a room not speaking, looking 'angry' (the face I make when I want to look interested in myself or pretending not to care...). But in reality I'd walk in, stand in one of the (now, full, i'm assuming) corners, wait for somebody to talk to me, make myself look busy. Be nervous because everybody knows that I have SA but at the same time not care as much because I'm in the same boat.