Olivia and Michael explore an unusual object, a toy harp. Olivia fingers the features that protrude, the posts used to tune the harp. The teacher models how to pluck the wire strings to make a musical sound. Olivia is intrigued, but on her way to trying this new strategy, she cannot resist fingering the protruding posts once again. She changes her movement from a pinch of the post to a grasp of the string, followed by a pluck made by swiping the wire strings with her fingers. Infants have a tendency to repeat a previous action upon presentation of the eliciting stimulus, sometimes called “percept bound.” Learning often requires the suppression of a habit.