The micro-expressions and micro-motions of lying in behavioral psychology. The nose covers the truth. When the person lies, the excess blood in the body flows to the face, causing the sponge structure in the nose to expand a few millimeters. The liar will feel the nose is not comfortable. Below is the psychological world revealed by some micro-expressions discovered by micro-expression psychology and micro-expression action psychology. •happy. Facial movements when people are happy include: the corners of the mouth are raised on the cheeks, and the wrinkles are raised on the cheeks. NGKINI micro-expression psychology micro-action. Psychology and micro-expressions Micro-actions and movements are important body language in interpersonal communication. They are the key steps to express yourself and understand others. Micro-expressions and micro-actions are a person's true inner reaction. It is difficult to be controlled by thinking. Micro-expression mind-reading psychology tutorial video