It's not the sort of event to get autographs. Fans are expected to maintain composure. I'm guessing it's only more lax than the rules I was expected to adhere to while I was an extra in Pirates of the Caribbean 2: no talking to the talent, no photos, no signatures, just working. Here, we can talk to the talent, but we still must maintain ourselves. So no bugging of the talent about storylines, or anything.
no subject