Most Harley riders around here wave unless they're riding a $40,000 piece of raked out assjewelry or they're flying colors (and even most of the gang/club types wave).
I wave at everybody. I waved at a kid on a dirtbike once and he was so surprised he nearly dumped it. I don't care, though; if you're not in a cage you're one of "us." Of course, I curse at them like a sailor if they don't wave back.
