He tried to step back, instead his feet moved forward.
She wanted to do as he said, but her feet would not move.
She wanted to run away, but her feet would not move.
She almost expected to feel its feet move against her skin.
Rose looked at the ground, but her feet did not move.
He could see clearly now as more feet moved in at his sides.
Her feet moved as if someone else were willing them to.
The feet move throughout the effect and the person's hands can be shown out the top of the box.
The music played, her feet moved, but the dance was over.
His right foot moved, as though starting its first step toward the door.