Rather than teach people how to practice "active listening," this activity requires them to listen poorly, impatiently, passively.
Ask participants to define "active listening." If the term is unfamiliar, ask people to brainstorm features of "good" listening and, in another list, "bad" listening. (Alternatively, use the See, Hear, Feel activity to define active or good listening in concrete terms.)
Then have people form pairs and take turns, with one person telling a story and the other passively listening.
You can do it a few times and then have a championship round, with people nominating the worst listeners, who then play the game in the center of a circle so all can appreciate their skill at bad listening.