Just like pups talking with their tails, kitties also use nonverbal signals to communicate with us and each other. In fact, one common cue happens in the blink of an eye! According to researchers at Indiana University, you can understand (and answer) your cats by using little eye movements. To learn how, read more.
Next time your kitty enters the room, watch to see if she stops and blinks with both eyes one or more times before approaching. The blinking shows that she recognizes the presence of another (cat or human), and that she is saying a friendly hello. This signifies that she is not threatened or threatening, and not going to fight for territory. Try imitating your pet's winks right back at her to tell her the same thing when she walks in or while you are petting her. See if you can get her to blink back!