Final answer:
Facial expressions are key nonverbal communication tools that convey a range of emotions and are influenced by cultural norms. The facial feedback hypothesis posits that these expressions can impact our emotions, while expressive behaviors influence how others perceive us.
Step-by-step explanation:
Facial expressions are a significant group of nonverbal communication signals (NMS) that convey our emotional states. They are capable of demonstrating a wide range of emotions such as happiness, sadness, anger, fear, surprise, disgust, and contempt. These expressions are considered to be universal across different cultures, although cultural display rules may moderate their expression in social contexts.
Research on the facial feedback hypothesis suggests that our facial expressions can influence our emotional experiences. For instance, smiling can actually lead to an increase in feelings of happiness. Conversely, suppressing facial expressions, such as through the use of Botox, has been shown to reduce the intensity of emotional experiences, including symptoms of depression.
Expressive behavior, including body language and tone of voice, is not only a reflection of our internal emotional states but also a way in which we aim to be perceived by others. In a sense, our expressive behaviors send out signals about the kind of person we are or desire to be seen as by our social milieu.