There are four different channels of cues. We talk about nonverbal verbal, which we're going to talk about vocal. Verbal cues are interesting because that is the mode of communication we think about the most. The kind of words we use can change behavior. Here's an example: In one study, they brought people into their lab and they split them up into two groups. And in one group, the researcher told them, okay, everyone, today we'reGoing to play the community game.