She did little more than beat at the water, and he could see her chin trembling.

George looked at the two young men, and his chin trembled.

For a moment the boy's chin trembled, then he nodded.

She curled up like a dog, and her chin trembled.

If he'd allowed it, his weak chin might have trembled.

She smiled at him and nodded firmly, her chin no longer trembling.

Her chin and lower lip trembled a bit, then she abruptly turned away from him.

Her chin trembled and she looked up at me reproachfully.

Baldur's chin was trembling, as if he were trying to speak but found himself unable.

The boy's chin trembled, but he drew himself up bravely enough.