He could tell, however, that she certainly noticed the look of concern on his face.

Then he noticed the worried look on Tom's face and asked what was wrong.

He glanced at his friend and noticed the black look on the other man's face.

He didn't notice the odd look his friend gave him.

Then he noticed the urgent look in her dark eyes.

He noticed the look of strain on his son's face.

He was saying something to Sally and didn't notice her look.

Tom asked, noticing the worried look on the man's face.

But her husband noticed the worried look in the cat's blue eyes.

I noticed the look on your face during the meeting this morning.