Most people around here wave if they can regardless of the ride. Yesterday I was out on the highway and saw bike about 1/2 mile behind me. I could tell he was a HD guy and was trying to catch up to see what I had. I finally let him catch up after ten miles and waved at him thinking he was going to pass, but he pulled in behind. Later he went to turn off to my right and waved. He had a nice looking deep blue HD. I think he was a little surprised to see the Speedy.
Dave