The aim of this exercise is for one participant to practice the assertiveness technique known as fogging. This technique comes from When I Say No I Feel Guilty, by Manuel J. Smith. (Note that this is different from the I Agree exercise.) This technique involves handling criticism without responding in an expected manner or by replying with criticism or aggression of your own. The idea is to acknowledge any parts of the criticism which are true without responding to other aspects of the criticism or to exaggerations in the criticism. See the link above for examples.