Final answer:
Focusing on the entire face when reading facial expressions is a universal behavior, regardless of cultural background. Cultural display rules influence how emotions are expressed.
Step-by-step explanation:
Research suggests that focusing on the entire face, including both eyes and the mouth when reading facial expressions is done primarily by people from any cultural background. The ability to produce and recognize facial expressions of emotions seems to be universal regardless of cultural background.
However, there are cultural display rules which influence how often and under what circumstances various emotions can be expressed. Tone of voice and body language also serve as a means by which we communicate information about our emotional states.