He never said much, but his eyes would light up.

The whole room seemed to light up with just the sound of those two words.

I couldn't remember the last time I'd seen his eyes light up.

I sometimes tell people I'll light up in case of nuclear war.

He'll stop to light up in the middle of a fire fight.

It is only the just whose eyes never light up.

You can almost see people's eyes light up when they get it.

But when he did the entire room seemed to light up a bit.

He could see her eyes light up when she saw him sitting at the computer.

The sun seemed to light up the top of his head.