Now and again he looked at her out of the corner of his eye.

He looks at her out of the corner of his eyes.

I looked at him out of the corner of my eye.

He looked at me out of the corner of his eye.

She looked at him out of the corner of her eye.

He looked at the little female out of the corner of his eye.

I'd been looking at her out of the corner of my eye.

Keep looking around out of the corner of your eyes.

We tell people, 'Just look at him out of the corner of your eye.

He looks at me out of the corner of one eye.