I'll assist with the bumping of this thread.
At Hillsdale, on the last day of formal recruitment, after pref parties, all the PNMs go up the hill to the auditorium and rank their first and second choice, then back down to their dorms to wait. They are all told that if they have received a bid, a Panhel member will knock on their door between 6pm and 6:30pm (or whatever). When the girls get the knock, the Panhel member says, "Congratulations, you have received a bid," but they don't tell the girls what house. The girls all gather with their friends as quickly as possible and run "up the hill" to where the dean's office is.... All the PNMs who have received bids gather there. For some reason, Pi Phi is the only group who waits outside of Central Hall where the dean's office is - the other groups wait at their houses. Anyway, Panhel hands out envelopes and the girls open them all at once, run out of central hall, and either into the gaggle of Pi Phis at the bottom of the steps or down to their houses. It's very much fun.