Basic emotion: an innate emotion that is shared by all humans.
Facial feedback hypothesis: the idea that emotions arise partly as a result of the positioning of facial muscles.
Misattribution of arousal: the failure to interpret sighs of bodily arousal correctly, which leads to the experience of emotions that ordinarily would not arose in the particular situation.
Display rule: a culture-specific rule that indicates when, to whom and how strongly certain emotions can be shown.