His face relaxed a little at the sight of the change in Francisco's.

He seemed to be thinking hard about something; and then, his face relaxed.

His face relaxed, as if he'd heard more in her voice than she intended.

His face relaxed a little just because she'd reached for him.

It was the first time I'd seen her face completely relaxed.

The older boy looked him over, then his face relaxed a bit.

His face relaxed so that he looked little more than a kid.

His face relaxed then, almost to the point of smiling.

Every time he let his face relax it came back.

His whole face relaxed then; he had recognized her voice.