You are a police officer looking for a suspect who has stolen an iPhone from a store. You encounter a group of youths and ask if any of them saw anyone running away from the mall. They say no, but when you first asked the question, you noticed that one person's eyes widened briefly. What nonverbal does this describe?

Question

Quizplus · Accepted Answer

The widening of the eyes is a brief and involuntary facial expression known as a microexpression. It can indicate a person's true emotions or thoughts, which in this case may suggest that the youth saw something related to the theft.

You Are a Police Officer Looking for a Suspect Who