Separate students into smaller groups of 4-8, preferably in a circle configuration. Call on mature student or adult leaders to facilitate each small group through this experience.
Instruct each person in your group to think of one unique thing about him or herself that no else would know and write it on a piece of paper. Collect the papers and mix them up. Read each unique thing aloud and challenge students to guess who it is about. Continue until all the facts have been guessed.