How Your Nonverbals Impact Teaching - Gonzalez J (2015)

There is a kind of interaction in all human communications, such as multiple forms of non-verbal communication, the exchange of information and meaning through facial expressions, gestures or body movements. And this interaction is so useful that we can say, when a person learns to interpret body language, no words would be as clear as it is.

Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5346168/ & https://www.cultofpedagogy.com/improve-nonverbal.../