A tiny muscle in his cheek twitched as he increased the pressure.

He ignored me, but I saw a tiny muscle in his jaw twitch.

Forget the eyes, Croaker's father had taught him; look to the tiny muscles on either side of the mouth.

It works by paralyzing the tiny muscles that create wrinkles.

Not without being able to use the tiny muscles in his throat.

But I've learned to judge the eyes, the flesh, the tautness of tiny muscles.

Just a tiny muscle jumping at the corner of his jaw gave anything away.

But a tiny muscle danced at a corner of his mouth.

His fingers felt for the tiny muscle, and the needle slid home.

A tube that was rigid and controlled by a tiny muscle.