A group makes a still image and individuals are invited to speak their thoughts or feelings aloud – just a few words. This can be done by tapping each person on the shoulder or holding a cardboard ‘thought-bubble’ above their head. Alternatively, thought tracking (also called thought tapping) can involve other members of the class speaking one character’s thoughts aloud for them. The technique is most often used in conjunction with image theatre or freeze-frames. Equally, thought-tracking is useful preparation for improvisation.