Star-Gazing

Get a group of 5-6 people and go outside of the city limits so that you can fully see the stars. Pack some blankets and some small pillow to place under your heads while laying down as you look towards the sky. 

When a lull comes in the conversation, throw out some old school songs that the group probably knows. If the group is around the same age, think of songs that would have been popular during your teenage years. Then start to sing them together. Don't worry about pitch or how good a singer that you are... no one sings well when you are on your back looking at the stars. =)

After you guys ramble through the first few lines of the song, ask the group if the song triggers a memory from your teenage years. Get that person to share the memory with the group. I guarantee their story will trigger a story that you have. When the stories die down again, bring up another song.