Carl's sister called him a cruel name when they were kids. He still believes her capable of such cruelty. Carl is engaging in what concept from the text?

Researchers have estimated that humans have between 5,000 to 250,000 different facial expressions

Indicate whether the statement is true or false

Conclusions serve two major functions in public speaking: 1. to summarize and 2.__________

Fill in the blank(s) with the appropriate word(s).