That's a good one. I smile and wave. I hardly ever get honked at, but a couple of years ago I zoned out at a light and it took me, oh, probably 2 extra seconds to take off. The guy zoomed around me and gave me the high sign. I smiled and waved real big. He saw it in his rear view, and digited me again, harder. I waved again. This went back and forth probably about 5 times, by the end he was practically jumping up and down in his seat, and I finally stopped because I was about to start laughing out loud, and I was afraid he'd blow a fuse and run his car into someone. It was very funny.