Set up a situation involving two sides.
At an important point in the role play, have everyone freeze.
Ask people to take the opposite role and take up the conversation where it left off.
The facilitator may have to help people remember what the last lines of the dialogue were. It can help if the facilitator physically moves people to their new positions and says, “You are now X, and you are now Y”.
Give people a moment to mentally shift to their new identities and resume the role play.
Follow the role play with an evaluation.