He took the opportunity to study her for a moment.

He studied her for a moment as she tried to figure out what to say.

We sat down and studied each other for a moment.

She looked up quickly and studied him for a moment.

When I was done, he studied the board for a moment.

She studied him for a moment, and saw the light behind his eyes close.

She looked at him and studied his face for a long moment.

The other studied him for a moment, then looked down.

He studied her for a moment, saw more than he'd expected to see.

She studied him for a moment from the other side of the river.