Read books on body language. https://www.amazon.com/Emotions-Revealed-Recognizing-Communication-Emotional/dp/080507516X https://www.amazon.com/Emotions-Reveale

Read books on body language. https://www.amazon.com/Emotions-Revealed-Recognizing-Communication-Emotional/dp/080507516X https://www.amazon.com/Emotions-Revealed-Recognizing-Communi... https://www.amazon.com/Unmasking-Social-Engineer-Element-Security/dp/1118608577 https://www.amazon.com/Unmasking-Social-Engineer-Element-Sec...