His jaw tensed, and he looked as if he might spit his own words onto the deck.

His jaw tensed as if he were grating his teeth.

His jaw tensed as he thought of the Star being out of his reach again.

Her jaw tensed; it always did when she exerted herself in silent concentration.

Murphy's jaw tensed, little motions at the corners of her face.

The warrior's jaw tensed, as if he refused to let the words escape his mouth.

My jaw tensed to bite him, and two things happened simultaneously.

Grimm's jaw tensed, and they stared at each other in silence.

Richter's jaw tensed, but he kept his eyes on the tracking device.

Reed's jaw tensed; he sent Tonya a look guaranteed to paralyze.