Ya know , I ride the same (pretty much) routes every week and see many of the same cyclists and most of the time get a friendly wave or sometimes a "hello" from people going the opposite direction. There is this one guy , and I wave every week at him, that never waves or even a head nod. He is about my age (mid sixties) and I still wave every week on my Sunday ride and .......nothing. At this point it is my personal challenge, I will continue to wave and maybe someday he will wave back. I don't understand but that's OK he is just one guy who is either VERY serious about his riding(not that fast either) or just not a "people person" . I am and refuse to change, I have met some great folks while out riding or stopping for my water break or to fix a flat. My experience of over 40 years has taught me that cyclists are pretty cool folks. Of course there are always exceptions as with any other sport. Joe joesvintageroadbikes.wordpress, see my bikes and rides!