u thought

back of the head scratch

a character shaking their head in disbelief or disgust with hand on their forehead, looking down

that kiss animation used since origins and in every mass effect game where they very slowly go in, hesitate, bop their heads around, and really go in for the kiss 

when a character, usually female, talks and puts their two hands in front of them like a robot and shakes them to illustrate their point

a character leans back on one leg with their arms loose

the exit-stage-right an NPC does after a conversation ends

angry limp wrist pointing

neck/collar bone scratch 

a slow crossing of the arms in times of suspicion

that punch animation 

drinking alcohol and violently shaking head

a character gives a half smile with an eyebrow raised