I have a 40 minute commute to work, one way. I notice a lot of crazy drivers, like the ones who pull out in front of me on a two-lane highway while I'm doing 60.
What I love to see is how motorcycle riders ride. It's almost like a code of conduct with them. No matter what kind of 'bike they're riding, a Harley, a crotch rocket, a low-rider custom job, whatever, they always acknowledge each other with a hand gesture. They put their left hands down and out, as a way of saying "hi" to each other and recognizing that they are the few. They ride a motorcycle and they love it. They are in their own "club," so to speak.
Black, white, Hispanic, Asian, hippie, red-neck, scary, middle-class, upper-class; it does not matter. You're getting the wave.
I think it is so cool.