His face sobered, and he drew a deep breath, then released it slowly.

His face sobered as they walked toward the bull pen.

At the mention of their supervisor within the agency, Maggie's face sobered.

His face sobered instantly as if a hand had wiped it clean.

Then he caught sight of me, and his face sobered.

You saved my life again in the swamp His face sobered at the thought of the termination team.

His face sobered as he asked what the trouble was.

It was a brief smile, and his face quickly sobered once again.

His face sobered completely, like someone had flipped a switch.

His face sobered, and he grabbed the reins of her horse.