The shooting contest between Frank and Annie
Conrad Birdie's enthusiastic cheering squad
Ulla's amazing dance number -- wow.
Leo Bloom's total freakout when seeing his beloved blanket attached to a hat, right down to Max splashing him with (imaginary) water and his delivery of the appropriate line from the show
Also, probably not as well noticed, Ambrose Kemper's desperate attempt to hide the (imaginary) rip in his pants until Irene Malloy could do a quick emergency repair job. Excellent job of keeping his back to the wall and sort of scuttling.
Tomorrow, the Coffee Break song!