Here's a 3-minute energizer for participants to practice active listening, constructive dialogue, joining language, and improvisation.
"Pair off. You and the person sitting next to you are about to take a vacation to Australia, and you're planning what you're going to do once you arrive. Have one person begin by suggesting something you both might do together. From there on out, the only constraint is that every following sentence must begin with the words, 'yes, and.' Continue suggesting ideas back and forth for the next three minutes."
I first saw the Fake Australian Vacation facilitated by Robert Gibson of Volunteers of America in Dallas, Texas at the VOA National Conference in April 2017.