Robert, from New Jersey, greets a group of friends by saying, "Hi, you guys." Darius, from Tennessee, greets the same group by saying, Hey y'all." The regional difference shown here is __________

Because of the diversity of the American population, you must assume that everyone does NOT think and act exactly like you do

Indicate whether the statement is true or false

Paul Ekman discovered that all of the following are examples of facial paralanguage, called conversational signals, except ______.

a. affect displays b. emblems c. illustrators d. regulators