i'll start. i saw a ask reddit post saying something along the lines of "men of reddit whats something women can't understand" and the comments were just. oh my god. the main one that made me want to puke was "when dudes walk by each other and nod" and the whole fucking thread was just fedoras with arms soypogging like it was some secret language or something. "when you nod upwards, it means respect!!!!!1!!11 when you nod downwards its aggression!!!1!11!!!!!" as if women dont do the same shit.
do you guys have something similar to share?
In my neck of the woods, it's nod down for someone you don't know or someone you are being respectful of, and nod up for a friend.
I remember watching some behaviour analyst person saying that it's because nodding upwards exposes the throat displaying vulnerability and comfort with the other person. Nodding down covers the throat. Because humans frequently attack and bite other people's throats.
Evopsych pseudoscience has never been more throaty
I think it hearkens back to Hyperboria when humans had horns. Up to show the throat, and down to show the horns.
Bring back having horns
I don't know if I ever learned this anywhere, but I totally do this subconsciously.
I only noticed it when a teacher pointed it out twenty years ago. He had it backwards and we had to correct him