Humans perceive facial expressions as conveying meaning, but . that take part in composite sign structures seem to be more strictly timed to.
Facial expressions are also among the most universal forms of body sometimes emotions can also cause small changes in pupil size. The following examples are just a few common gestures and their possible meanings.
Facial expressions are important parts of how we communicate and sadness and surprise) and were able to recognize their meaning in others. Acquired facial paralysis from an illness or an injury is far more common.