In this clip, you will notice that the child quickly loses interest in the activity as soon as the therapist begins to model an action for imitation. Rather than shying away from his frustration, the therapist quickly follows through with the prompting sequence. By doing this, she is teaching him that he needs to give her some response before continuing with his play. As soon as he has completed the modeled action, either spontaneously or with help from the therapist, she returns to imitating his actions and body movements and using simple language to describe what he is doing and saying.