Withdrawal involved drawing back or turning away, refusal, repulsion, and disgust. Expansion referred to the expanded chest, erect trunk and head, and raised shoulders, which conveyed pride, conceit, arrogance, disdain, mastery, and self-esteem. Forward trunk, bowed head, drooping shoulders, and sunken chest characterized contraction. (Taylor 83)" Studies have identified postural behavior with personality types and ways of life, for example relaxation, assertiveness, and restraint; have noted the connection of certain kinds of movement in sleeping and waking acts. Posture is a significant marker of feminine and masculine behavior. The relationship of posture to sex gestures is obvious in the advertising you see on television. Posture is an indicator of status and rank and is also a marker of good manners.
Facial expressions are great indicators of what is on people's minds. The face seems to be the most obvious module of body language, but it is certainly the most confusing and difficult to understand. The face has 44 muscles, nerves, and blood vessels, which can twist into 5,000 different expressions. Facial expressions are not always easy to read though. As Dr. Paul Ekman said, "In a sense, the face is equipped to lie the most and leak the most, and thus can be a very confusing source of information ".
The face is able to signal emotions in a second, and it is also able to hide emotions just as well. Facial expressions are like unspoken sentences in human language, they are infinite in variety with some obvious terminology. The relationship of facial expression to other components of body language and to language itself is lightly examined doe to the complexity and such observations that have been made are fairly recent. It does not take very far-reaching scientific study to observe that a smiling face makes a sentence sound different from a sentence expressed by a sorrowful, droopy facial appearance.