The child ran with both arms pumping, and face screwed up.

There was, though; the boy's face screwed up in thought and then relaxed.

Her face screwed up, and I thought she was going to vomit.

The little boy's face screwed up for a moment, then relaxed.

His face screwed up in pain as he fought for breath.

When its face screwed up with laughter it looked very old.

When they explained the situation to him his dry little face screwed up.

He took a pull, screwed up his face in surprise.

The boy did, his face screwed up with the effort.

Her face screwed up as if she was about to cry.