The main aim of this article to determine the utility of Non–Verbal communication and behavior in Human life. Non-Verbal Communication came first then Verbal communication in human life because of late development of language. Need to understand accurately and interpret appropriately Non-verbal communication and Behavior because of its deep, direct and indirect existence. In addition Non-Verbal communication and Behavior is continuous while Verbal communication Behaviour is a discontinuous behavior in nature. Without Non-verbal communication can’t be successes any verbal communication. Non-Verbal Communication and Behavior is non-manipulated, real and natural is nature. Because of these characteristics, it is essentially more important to consider in formal and informal settings of any field ie. Society, law, Education, Psychology Counseling, Management, Administration, Army and clinical field.