I usually give a nod when running, but it depends how far away the person is. For some reason, the other side of the street doesn’t warrant an acknowledgment unless it is a low traffic road. Same sidewalk gets a nod. Don’t know why, that just seems to be what I have noticed the response is to me over the years. I also think the “serious” runners greet less, but maybe the only greet other serious runners and I don’t qualify.

I think the reason runners greet less is b/c running is inherently painful (even though I love it), so niceties go out the window. Cycling is something you loved as a kid and so it takes you back and reminds you of being carefree. When was the last time you saw a runner smile while running?