What scienctist study people's ? what do they use for clues

If both the president and the vice president can no longer serve, who will become the next head of state?

Around the third week of a college class, a professor decides she’s had enough, is tired of dealing with bureaucracies, and wants out. so one day, instead of coming to class, she flies to tahiti and sells souvenirs on the beach. if this happened, the college would simply assign a substitute to finish the course. what does this tell you about the nature of the authority wielded by a professor?

What is your cultural heritage? what nonverbal behaviors are typically associated with your cultural heritage? which of those behaviors do you display? how might studying other cultures you be a competent communicator?