Final answer:
The facial feedback theory suggests that facial expressions can cause emotional experiences, with smiling potentially making us happier and frowning potentially making our mood more somber.
Step-by-step explanation:
The facial feedback theory posits that the sequence of components for emotion starts with a facial expression which then influences our emotional experience. This feedback from facial expressions to emotional centers in the brain suggests that smiling might actually make us feel happier and that frowning might dampen our mood. Hence, according to this theory, our facial expressions are believed to have a causal effect on our emotions rather than being simply a result of them.