Flickering back and forth faster than the eye can notice.

Glances flickered back and forth between the rest of us.

Immediately a spirited discussion flickered back and forth between the two little old people.

He stopped, the word flickering back and forth between two meanings in his mind.

His gaze flickered back and forth from me to the two sheets of paper.

Their eyes flickered back and forth, as though they were searching for something.

"No." The man's eyes flickered back and forth between the two strangers.

Bill seemed to have sensed it, for his dead eyes flickered back and forth.

The shape of Brutha's thoughts flickered back and forth in his mind.

Various thoughts were clearly flickering back and forth behind her eyes, too fast to interpret.