Gestures and their multiple meanings.

I use Praise the Sun after a boss victory in coop, or of course if another sunbro is summoned.

I always bow / proper bow after a pvp win even if they were a griefer/farmer, because I don't like stooping to their level of spamming insulting gestures even though they killed you 3v1. But occasionally if it is someone I've met before and know they are a ganker I will down gesture them on a win.

My recent favorite was winning a 2v2 in the forest, and the other forest hunter and I turned and happened to up gesture at each other at the same time. It looked like we were high fiving