She watched his approach with a half-smile on her face.

Miriam watched him for a moment, a small smile on her face.

He turned, the smile from watching the horses still on his face.

I watched the play of light and shadow on Linda's face.

Cameron watched for the effect or this on the sawyer's face.

He just watched her, with that strange look on his face.

He watched her reactions with such an expression on his beautiful face.

Eileen watched both of us, a strange look on her face.

We all stood there and watched the expression on his face.

She was watching me with love and concern on her face.