"They pick people up from all ages. You can't really look at someone and know how much experience they've got. A bunch of people have been doing it since they were kids." Still not exactly the answer Lalo requested, but it's enough of something for now.

"I'm happy to show newer people around, if that's what you mean. My friends aren't really the formal type, though. Not sure they'd like that kind of an intro. Maybe we could pick a time after the party dies down? the next one's bound to be quieter."