I am in NC, and most Harley riders do not wave. I got tired of waving and not getting a return wave, so I have stopped waving at Harley riders unless they wave first. NC is a helmet state, but now that I think about it, it does seem that the riders wearing the little beanie helmets are the ones that do not wave. The ones wearing the real hemets (the ones that protect your head) do seem to wave, even if on a Harley. I think I may make the conclusion that the ones that don't wave are the guys who are too worried about looking cool than riding. These guys could be on any bike, they just choose to ride Harleys cause they are more expensive, thus cooler.