Get a pretty long piece of rope. Have everyone put on a blind fold. All paricipants need to grip the rope with both hands. They must grip the rope with at least one hand throughout the activity. Tell them that they must arrange themselves in the shape of a circle. This must be done without removing the blindfold. This is fun to watch. Look for frustration to set in. Some will immediately take a leadership role. Many participants will stick it out and some might quit pretty quickly. Don’t give them any directions until they are blindfolded. Don’t give them any feedback until they state that they think they are in a circle.
Position someone at a dry erase board with a marker. They must face the board the entire time. Give the audience a diagram. It cound be simple or complex. The audience must instruct the person at the board and try to get this person to sketch the diagram. A variation of this would be to pair everyone up. Sit back to back. One partner gets an index card with a diagram. They must give their partner directions that would help them produce another sketch that looks exactly like the diagram. The person giving directions should not look at the sketch in progress. Switch later and let the other person give directions and another draw.
Unknown Facts: Everyone needs a sheet of paper. Write three facts about yourself that are unknown. For example, I broke both sides of my jaw @ 13. I once owned a Honda Shadow 500. During my childhood a had a dog named Pepi etc etc. Wad up your sheet of paper into a pretty tight ball. Have a paper fight for thirty seconds. Throw a wad, catch a wad, throw…etc. At the end of thirty seconds, everyone gets a wad, opens it, reads it out loud, and tries to guess who wrote it. Everyone take a turn. Variation - write two statements that are true, one false. Guess who wrote them, then guess which one is not true.
Counting: Explain to you group that during this activity they may not give any suggestions or guidelines. There can be no pointing. Tell them that during this activity, the only thing they are allowed to say are numbers. Explain to them that everyone in the group must say at least one number. Tell them they may not count according to the way they are seated (counting off). They are trying to count to 25. If anyone speaks at the same time, they must start over at one. You really must emphasize no pointing. And no directions can be given. I suggest that you state your directions clearly a couple of times then just say, “go”. When two people or three people speak at the same time, say “start over”. “go”. This is pretty funny. My kids have not counted past 19.
Not sure if these will be popular with adults. Some might like it , others might not. Good luck.