At the beginning of the course, I ask students to pick out someone in the class that they do not know, and sit down to talk and introduce themselves to each other. Afterwards, we all sit in a circle and each person takes a turn introducing their partner to the whole class. We end by discussing our reactions to the exercise, especially what it was like being introduced. A variety of interesting issues about self-perceptions versus perceptions-of-self-by-others comes up.
I tell the students ahead of time that they will be introducing their partners, but I suggest that they not take notes during the dyad discussions. Some feel anxious about introducing their partner and want to make sure they "get it right." But relying on memory alone highlights interesting issues about our subjective impressions of the people we meet.