He wasn't sure if the father and son noticed.

When my father noticed what was happening, which took him a few minutes, he grabbed the book away.

The idea that her father even noticed him was a surprise.

That's what makes friends who knew his father notice the resemblance.

They'd even said that to him once in a while, until his father had noticed and put an immediate end to it.

Her father is the leading doctor of the area and noticed it.

While his father did not notice the reason and tried to force it to him, he left the gym to go to a hospital.

I found myself smiling for no good reason, something even my father noticed when he got home from work.

"Her father and I have noticed before that she can be just a bit on the stubborn side."

The father had turned to watch the next base runner and so didn't notice the commotion right away.