With her precise timing and subtle lingering expression, she is a delight all the way.

It seemed to convey what a human girl might communicate with a subtle facial expression.

It was a subtle and effective expression and one difficult to copy.

Their lyrical approach changed toward a more subtle expression of their faith.

A subtle expression crossed the manager's face, almost a mocking smile.

Long practice in reading the most subtle expressions on his friend's face and nearly invisible body language cues made the changes apparent.

She sat silently for a few moments and Conlon had not yet learned to read her more subtle expressions or body language.

There was a subtle expression, something she had never seen on his face before, and she couldn't read it.

The subtle expression made clear he wouldn't object to an interruption.

And more subtle expressions still elude the computer models.