This is a character exercise. Could we have one player sitting on a park bench.
The first player on-stage sits silently, displaying as much about their character as they can without verbalising it. The next player in makes a strong complimenting character choice. A complimenting character may be contrasting or supporting. The player coming on should make strong character choices as soon as they are off their seat. This means the character should be embodied in their walk, voice and intent. The two characters interact for about thirty seconds and the player that was on the bench first finds a reason to leave. This leaves the second player on the bench alone for a while. The next player creates a character and joins the player that is on the bench. This continues until all in the workshop have done one or more characters.
Lock the players into the characters that they create, and have them meet again on the park bench.
Info Desk: a series of characters approach a department store info desk, and each request causes the person behind the desk to leave.