Avelyn's expression soured and he looked down at the bar.

The president glanced at someone out of camera range, listening for a moment as his expression soured further.

Flenn's expression soured abruptly, bringing darker coloring to the raised, already darkened areas of his face.

His old friend's expression soured with each passing word.

Then his expression soured as he saw the rebellion in her eyes.

Drizzt wondered, and his expression soured as he considered the limitations of Catti-brie's heritage.

A sour expression probably sours the blood, and everybody knows that sour blood makes one's face break Out.

Bean's expression soured and he shook his head.

Especially the last expression soured on him.

Slowly her expression soured as she recognized that their chance of being easily ransomed was being compromised.