Your expression.

[lebesgue]

Your expression is a large part of attraction. In seeking higher PSL, I see that people here squinch and flex their jaw too oblivion and look as stiff as a rock. Having natural and appropriate expressions along with your responses is necessary for charisma and NT. Your expression can make the difference between being in a conversation and not, looking good after an argument and not, etc

Just something that isn't said enough here.