One of the most important forms of nonverbal communication is facial expression.A raised brow, for example, can indicate disbelief or skepticism, whereas a furrowed brow can indicate concentration or frustration.They can convey a wealth of information about a person's emotional state and can have a significant influence in social interactions.Facial expressions can convey a wide range of emotions, including happiness, joy, sadness, and anger.Facial expressions are important not only for conveying our own emotions, but also for interpreting the emotions of others.