Lucy: Say, by the way, can you play "Jingle Bells"? No, no. I mean Jingle Bells. You know, deck them halls and all that stuff. No, no. You don't get it at all. I mean "Jingle Bells." you know, Santa Claus and ho ho ho, and mistletoe and presents to pretty girls. That's it!

Lucy asks Schroeder to play "Jingle Bells" and after multiple attempts, which she declines as correct. She gazes lovingly at Schroeder, who then out of frustration taps one key of the piano while playing "Jingle Bells," which sounds like a child's toy piano. She then yells that it is the right sound and Schroeder turns a few unplanned flips from Lucy's reaction. They are around his piano, in the auditorium.