What's the meaning of "The eyes Chico, they never lie"?

[Anonymous]

Have seen a lot of people use this in their captions on insta. I know it's a quote from a movie but don't know what it means exactly.

[sandhiyaa]

It means when a person wants other person, SHE can't hide her feelings. She might not say it with words but he should know it by understanding her expressions. It's clearly visible on her eyes.. The words may lie but not the eyes. The eyes always always reveal the truth.

[ecfresh]

psychpedia.blogspot.com/.../...else-how-blink.html

[LovelyBones13]

From the movie scarface