OK, it's really simple................it's not all about them outside the helmet
Sometime how you feel inside, makes others feel better, by the way you are when you do interact with them in any way.
That's how i see the bike thing anyway. I know they can't see my face but i feel good doing it....karma ??
Try it some time, when you are walking down the street. Ever notice how everybody stares at the floor, never eye contact ??
Try for eye contact, sometimes you can be successful !! Then a smile.....it's contagious
Happy holiday peeps