Kramer thinks he's tracked down his old nemesis Grossbard who owes him money - when he accosts him Kramer says "Hey - remember this?" and pulls his hair back while pushing his shirt collar together!
George on his new job, proudly announcing "They've given me the Pensky file!" A friend and I drop that one in when mentioning starting a new job.
Pensky actually shows up and demands to see his file. George proudly refers to how he's put the documents in "this attractive concertina-style folder" and Pensky says "This is good work - would you consider coming to work for me?" as though the mere use of the concertina folder is enough to convince him!