This is done well in groups of 4- perhaps model with the whole class first (Use it as Classbuilding when you want to as well!) Not only is it fun and engaging, but it uses call and response for listening skills. The activity works this way: You say, “I see, I See.” The students reply with “Mr. or Ms. X, What Do You See?” You say, I see students doing (insert an exercise) 10 jumping jacks. The students do what you say you see. Do this for 3-5 minutes, and your students will be ready to learn again. In case of Teambuilding, 1 student does the insert and after each one, they swap until everyone has had a go.