yeah, pics (which i have yet to do, the gf and i keep talking about it, and never getting around to it)...
and that's the way i learned, except not in a group ride. i had the fixie, was with someone on a bike, and had to just jump on and go...and just get on with it. that seems to be the best way to learn. it's also how i learned to skid when i got my track bike, cuz i didn't have much choice, rolling up to that intersection.
fun, though, isn't it?