Non verbal communication is communication that occurs from person to person without uttering any words.
Examples for nonverbal communication includes;
a) Shrugging of shoulders : This can show a kind of reluctance or a disagreement in disgust.
b) Winking of eyes : This can mean a lot of things, but mostly it means being playful or agreeing upon something.
c) High five : this means celebrating the joint accomplishment of a task done by 2 people
d) Sigh : This either shows the person is brooding over an unpleasant situation or shows a sign of relief
e) Expressionless : this can mean disinterest/ boredom or worse, it might indicate a disdain.
Hope that is helpful! :)