Do the opposite of dancing. Have students "freeze" a moment of the text by acting out exactly what is described in the text at some specific moment, and holding perfectly still. You could photograph these moments if you have a digital camera.
Do a verbal fill-in-the-blank exercise. As you read, stop at random and have students shout out what word comes next.
Check comprehension of key concepts by asking students to draw pictures. For example, students could demonstrate understanding of the difference between "I like kimchi."/"I don't like kimchi." by drawing two different pictures.
A note about memorization. A lot of students really do enjoy memorizing the books. Allow them to recite what they've memorized in teams. Many students love to show off their English, and feel very proud of being able to produce a minute or so of non-stop English.