When the two men first saw each other they laughed, and then grew thoughtful.

But her eyes, focused on the wall, had grown thoughtful.

Then she grew thoughtful and added, No, you're fighting something.

In the mean time, the poor little Jacinta grew pale and thoughtful.

The smile faded from his face, and he grew thoughtful.

Then he seemed to grow thoughtful for a moment.

He grew thoughtful as they made the final turn toward home.

His eyes grew thoughtful as he stared at the ship.

Bob grew thoughtful, and was silent for a few seconds.

He was silent for a moment, and grew thoughtful.