His expression must have registered a bit of surprise, prompting Arex to speak again.

The expression on the Malwa's face registered a subtle invitation.

He saw her but his expression did not register surprise, just acceptance.

No expression registered there, but I knew this question must be stabbing him.

Now their expressions registered the shock they should have felt long before.

Yet her expression registered no chagrin, and he knew she didn't realize it at all.

Her expression - if he even tries to catch it - registers mostly disapproval.

An expression of relief registered itself on his usually immobile face.

Miceal's expression registered his concern, and the long- shoreman continued quickly.