How much is a genuine smile from another person worth?

There was a genuine smile on her face as she looked back at him.

This time, a genuine smile slowly came over the thin face.

She smiled her genuine smile and reached for his hand.

For the first time in months, Anthony felt a genuine smile come over his face.

And for the second time in the same day, she saw herself smiling a genuine smile.

I think that was the first genuine smile she'd shown me.

They are the only things on this world that bring a genuine smile to my face.

Another thing I look for is a very genuine smile.

For the first time, she gave him a genuine smile.