Samir says 
All over the World, children play “Simon says” when learning a new language. Here we choose to call it “Samir says”.
Begin with introducing the new words to the class:
In the begining the teacher is “Samir”. When the sentence begins with “Samir says”, everyone has to do, what is said e.g. Samir says: Stand up – everyone stands up. If the teacher says “Samir says: sit down”, everyone has to sit down. When the teacher gives an instruction without saying: Samir says, the children should not follow the instruction e.g. Sit down”. The children who sit down anyway, should not have done so. If someone makes a mistake, they continue to be a part of the game anyway.
Start in the classroom. Later you can go outside in the school yard.