Love your idea of saying "cheeky" things while standing in line. I'm going to incorporate that behavior into my own personal style. Thanks, Andy.
One thing I do, which is similar, is talking to people in elevators, something I only began doing in the last couple of years but which has become my habit, I do it now without even thinking about it.
Yes, the way to win, is to talk, just about to anybody. I like people, so always fun to make new friends.