Body language is a form of non-verbal communication involving the use of stylized gestures, postures, and physiologic signs which act as cues to other people. Humans unconsciously send and receive non-verbal signals through body language all the time.
Non-verbal communication is the process of communication through sending and receiving wordless messages. It is the single most powerful form of communication. Nonverbal communication cues others about what is in your mind, even more than your voice or words can do.
According to studies at UCLA, as much as 93 percent of communication effectiveness is determined by nonverbal cues, and the impact of performance was determined 7 percent by the words used, 38 percent by voice quality, and 55 percent by non-verbal communication.
In communication, if a conflict arises between your words and your body language, your body language rules every time.