Are there any interesting small programs that can be performed in public? That kind of occasion always seems awkward, except singing, telling jokes and doing magic tricks.

You can play with the train, that is, all of you come up with the name of a city, such as Beijing. You just say that the train in Beijing runs twice, and then others say where to go twice. You just need to specify a city that some of your friends say, such as driving to Shanghai. If Shanghai is wrong, you will be punished. Oh, hee hee, don't prepare anything.