I generally ignore it. I've had friends tell me they seen me and they honked. Most of my friends know better, so they don't bother.
I've had women ask if I had a girlfriend, tell me I was hot ect. Most kids leave me alone because my arms are tattooed and they're probably afraid I'll catch them at the next light.
I do check my mirror every once in a while when u hear a honk. If I hear a bus or truck honk I make sure they have room, some of the student truck drivers act like they need a lane and a half though.