This is an idea for ESL teaching. When you have a classroom of people and you don't want them to speak their native language you start your lesson by introducing a language box. The group stands in circle and you walk along that circle with the box. Each member must "take out his tongue" and put it in a box. That means he/she will not be able to speak the native language during the class. Everyone can think of a funny or unusual way to take the tongue out.
At the end of the lesson you make the reverse procedure: you go around the classroom and let everyone take their tongue back.
At the end of the lesson you make the reverse procedure: you go around the classroom and let everyone take their tongue back.
