As we walked he looked at my head and tried to hide a grin.

The boy had a hand over his mouth in an attempt to hide a wide grin.

The messenger hid a grin behind his hand, but not very well.

Hiding a grin, he even changed his course to bring himself closer to the foolish young man.

When Dean glanced her way, she had to hide a grin.

Finally he'd had to raise a hand to his mouth to hide a grin of embarrassment.

He held out the pages, not bothering to hide his grin.

She lowered her head to hide a grin, and I couldn't help smiling, too.

Cap put a fist to his mouth and turned away, hiding a grin.

Eve began to suspect the gesture was to hide a grin.