J.D. becomes annoyed that new girlfriend, Julie, doesn't laugh, but rather tells him when things are funny. Afraid that he is going to screw up yet another relationship, Elliot encourages J.D. to start saying his feelings out loud and Turk tries to use his psychology background to fix the issue. Meanwhile, Carla is upset when the Janitor refers to the new nurse as a "hot young Carla", increasing her growing concern that she is too old to conceive.