Also, people seem to think the virus magically stops at an invisible 6 foot distance whereas in reality you need much more if you're breathing and running where you leave a much bigger trail of aerosolized particles as you run, and there's also wind carrying your breath much further than in a still situation.
I do take mask off for hikes when nobody is in sight but I always put it on when I see people are about to pass. What's annoying is people who don't put their mask on to pass you and don't stop and wait for both sides to have mask on before passing. I've been forced multiple times to abruptly stop and backtrack my steps to maintain distance while fiddling my mask on because the other person kept pressing forward impatiently.