This game requires a bit of setup. Decide how you want to play the game and plan appropriately. Here is an example but for the whole group but it can be applied to a select few or team leaders.
Give everyone an index card and pen to write with. Have them write a short story of something they did or a bizarre fact nobody knows about them. “I once…” Tell them in advance to not let their neighbor see what they are writing and not to share as the game unfolds. Let them know that it can’t be anything that someone in the room already knows about them.
Collect all the cards and randomly pick one. Read it and have students guess who the story belongs to.
An alternative way to do this is to have five or a handful of students come forward, write the story, and then let them stand in front of the group as a story is read. You could have an additional volunteer attempt to guess in front of the crowd for a prize. Let them decide without telling them if they are right or wrong. Continue reading the stories and give the card to the person they guessed. When the student is finished with all of the guesses let the story tellers reveal. Decide if they get a prize if they were correct on three out of five or something else.