His keen glance went from one to the other.

All the while, he had been sending keen glances toward the metal door.

"Or some such," said Street vaguely, with a keen glance at the younger man.

Again he gave a keen glance of his pale eyes around the circle.

What a keen glance he had shot at her from under those bushy eyebrows of his!

He gave me a keen glance as he went out.

His keen glance took in the youth from head to foot.

Her eyes moved slightly as she appeared to study him with a keen glance.

He gave her a keen glance; she meant it, too.

His eyes, now visible as he came closer, seemed to pierce her with their keen glance.