Body language refers to the non-verbal communication of feelings, emotions, attitudes and thoughts through gestures, postures, facial expressions and other body movements. The face is one of the most significant parts of the body for communicating through expressions. Facial expressions can convey a wide range of emotions like joy, fear, anger and sadness. Other aspects of body language include gestures of the head, eyes, mouth, hands, legs and styles of walking. Proxemics or use of interpersonal space is also important in body language.