Me and my brother do the "HUGH!" exhaling sound he does when he hangs up with people to each other to the point where now I do it to people who don't even listen to the show, like my parents.
Oh yeah, I've totally got in the habit of saying a very high pitched "bye" to everyone I know when I get off the phone. I also have been encouraging my gf to say "What are you bragging?" to her fellow grad students whenever they refer to any minor, barely-worth-mentioning thing they've acheived or accomplished. As in
"I finally finished reading 'Art in the Age of Mechanical Reproduction' this morning."
"What are you braggin'?"
"No, I just thought he makes som..."
"You're a big shot all the sudden?"