He was watching Truck out of the corner of one eye.

But I was watching her out of the corner of my eye.

She watched him out of the corner of her eyes.

I watched her out of the corner of my eye.

"We keep watching out of the corner of our eye."

Watching me out of the corner of his eye every second.

Instead, he watched the man approach out of the corner of his eye.

I went right ahead, watching them out of the corner of my eye.

Jim was watching the other man out of the corner of his eyes.

He watched me out of the corner of his eye.