WIWAK When I Was A Kid, is a wonderful nostalgic exercise for adults and best done in the dark.

WIWAK -- I first participated in it when our 20 or so fellow dance students took a break from practice, chose shelves on scaffolding, put out the lights, and, by the light of lit up cigarettes, heard someone say, "When I was a kid..."
and, when done with his/her 2-minute remembrance, inspired all of us to do the same. It had a powerful bonding effect.