Each student should prepare two (2) true sentences about themselves, and one (1) false sentence about themselves. It's up to the other students to vote on which sentence was the false one.

 I have a dog.

 I can cook well.

 I've been to Kyoto.

The other students can have a few minutes to ask the student some questions in an attempt to find out which of the three statements is false:

• "What's your dog's name?"
• "What's your favorite meal to cook?"
• "When did you go to Kyoto?"

Then, everyone in the group uses their Captur paddles to say which statement is probably the one that's not true.

Make it four!

You could, of course, have students prepare four sentences instead of three. In my experience, with Japanese university students, three just seems to work better. 

Not Too Obvious, Please!

The students at my university who are on the baseball team tend to wear their baseball jackets to class. Invariably, one of their sentences will be about baseball. I tell them that their sentences about baseball are too obiously true, since they are wearing their baseball jacket, and their teammates are also in the class.

Whole Class, or Small Groups?

The size of the groups are up to you. In larger classes, it's probably better to split the class up into smaller groups.