Her head jerked up and they looked at each other.

His head jerked once as he died, then the body was still.

His head jerked away from the face in the water.

Her head jerked around for a look at the door and then back to me.

Suddenly her head jerked around to me and she said, Of course.

And his head jerked to the side, as if trying to avoid a great light.

Suddenly his head jerked around and he looked straight through the door at her.

His head jerked to the side like he was listening to something.

His head jerked twice to the left, mouth coming open.

Her head jerked with the impact, then she smiled at him.