The tiger's head twitched, and for a moment it seemed it would rise.

His head twitched a reference to the Bill's ubiquitous surveillance.

He stood and glared, his head twitching with rage.

Each time she blinked, her whole head twitched slightly.

"Meat, you're too young to know," Roman said, his head twitching in horror.

The agent's head twitched sideways, but he didn't look behind him.

Her head twitched back to them with a start.

His head twitched as he caught the scent of her on him also.

His head twitched, as though to turn and look over his shoulder.

Morn's head twitched back as if she were reacting to a flick of pain.