Answer:
Display rules
Step-by-step explanation:
According to a different source, these are the options that come with this question:
- Facial expressions
- Display rules
This is an example of display rules. Display rules are informal rules that regulate the ways in which people of a particular society behave. These are common to all members, and they are learned by people's intercations with other members of their society. Display rules regulate behaviours such as facial expressions, hand gestures and body language.