A small grin still drew at his mouth, but he was frowning hard.

He opened his eyes and managed a very small grin.

He paused and allowed himself the luxury of a small grin.

He gives the boy a small grin and a thumbs-up.

Then a small grin curled her lips for a second.

He nodded, and a small grin played across his face.

"The forces of evil won," he said with a small grin.

She was pleased with herself and could not help but give a small grin at her success.

The action released a measure of his tension, enough that he could look at her and allow a small grin.

"Perhaps on further acquaintance," she said with a small grin.