When she glanced up and noticed, anger sparked in her eyes.

For one brief moment, something sparked in her eyes.

A flash of anger sparked briefly in her brown eyes.

For some reason, she desperately needed to again see that spark in his eyes.

He hesitated; I could see the interest sparking in his eyes.

Fury sparked in her eyes, making them really quite lovely.

Something that might have been genuine excitement sparked in her eyes.

She gave me a sideways glance, well pleased with herself but there were little sparks in her eyes.

For a moment the old cunning sparked in the dwarf's eyes.

A hunger she'd never even dreamed could be real sparked in his eyes.