There is a country song I have heard before about... the look in your eyes.I think it might be by allison krauss,martina mcbride, or reba mcintyre or something.

The Smile on your Face - Allison Krauss

It's amazing how you can speak right to my heart
Without saying a word you can light up the dark
Try as I may I could never explain
What I hear when you don't say a thing

The smile on your face
Lets me know that you need me
There's a truth in your eyes
Saying you'll never leave me
The touch of your hand
Says you'll catch me if ever I fall
You say it best
When you say nothing at all

All alone I can hear people talking out loud
But when you hold me near
You drown out the crowd
Old Mr. Webster could never define
What's being said between your heart and mine

The smile on your face
Lets me know that you need me
There's a truth in your eyes
Saying you'll never leave me
The touch of your hand
Says you'll catch me if ever I fall
You say it best
When you say nothing at all

The smile on your face
Lets me know that you need me
There's a truth in your eyes
Saying you'll never leave me
The touch of your hand
Says you'll catch me if ever I fall
You say it best
When you say nothing at all

Does that sound like it? :)

The song Nautical suggested is actually called when you say nothing at all. Alison krauss did the re-make. The original was performed by keith whitley.