Spock's face wore what on a human would be a stubborn look.

"If you know so much, explain it to me," he invited, a stubborn look in those dark black eyes.

And that stubborn look on Spock's face as he left.

Why have you got that stubborn look to your mouth?

Except for a very stubborn look in his eye.

Renie saw by his stubborn look that this would not end quickly.

There was a closed, stubborn look on her face.

She knew from his stubborn look he wasn't going to change his mind.

Meg threw up her hands at the stubborn look on his face.

She stared at the desk, her face taking on a stubborn look.