I guess that your cat might have had something in it's eye, but winking right after you was the weird part. She might have been asking for attention, but she also might have been showing you affection, as the others said. Maybe she saw you winking,and wanted to do it to. My cat winks all the time, but not in a pattern. I actually had somebody come in once (I'm a vet) saying their cat had something in his eye, but it turned out that he just winked, and the owner had just freaked out.