Then his expression wavered, as if he weren't sure.

Yet, the captain's expression never wavered as he spoke to the King.

"Oh," her expression wavered as she thought of the legendary tribal council.

Her expression never wavered, remaining fixed and determined as she stared into his eyes.

The young man froze, then nodded, his expression wavering between fear and determination.

Her expression never wavered, and she continued in that odd voice.

Her expression wavered before she realized that it didn't reveal its source.

His expression wavered, then returned to a conscious and confident calm.

Her expression wavered for just a moment before she smiled at him, and he kicked himself mentally.

Then he saw her expression waver, just for an instant.