Yes! I "squint" at my cat, Saima (see Cat of the Day, September 17, 1999), and she seems to know that I am telling her that I love her -- non-verbally! She's usually purring loudly and has a contented look on her face when she's squinting at me. I have heard that when a cat squints at you, she is kissing you. But my cat also "kisses" me by gently licking my hand or my cheek a few times. It's so sweet!