I'll wave at any bike but some HD riders won't wave possibly due to the helmet. A coworker with a Harley wears a helmet most of the time notices the same thing. The plastic waving hand is from the early 80's all truckers waved at each other on the road and just like too many bikes to wave back at some one came up with that plastic hand on a spring and it just bounced back and fourth waving at everybody. I remember the closed fist in the 70's when 2 modified vans would meet on the road the arms would come out the windows. Hilarious now.
mike
