Body Language Information - Face Expression

She is our new subscriber and want to tells us about Face Expression. She writes, A simple smile can make others feel more at ease where a frown can make people see that you are aggressive or unsure of something. A facial expression results from one or more motions or positions of the muscles of the face. These movements convey the emotional state of the individual to observers. Facial expressions are a form of nonverbal communication. They are a primary means of conveying social information among humans, but also occur in most other mammals and some other animal species. Many took that work to imply that facial expressions provided the key to people's feelings. But in recent years the psychology literature has been sprinkled with hotly worded attacks by detractors who claim that there is no one-to-one correspondence between facial expressions and emotions. In fact, they argue, there's no evidence to support a link between what appears on someone's face and how they feel inside.