Two of my favorite lines in this episode:

(June) "Oh, no, it couldn't be...he's over at Whitey's."

and

(Wally, in the crowd) "Who else?"

2 other good lines:

"I just thought you might be trying to get rid of me Friday night on account of you having a party."

"It was almost like I was up there without any clothes on." [There was a discussion thread about 1-2 years ago about how the words "naked" or "nude" were never said in the entire series.]