I'm ignoring you
I can see you out of the corner of my eye, trying to get me to pay attention to you. But I won't. I have more important things to do, like look at the birds in the yard.
You say that I am ignoring you. You are right! I am not your plaything. I am the cat. I rule this house, and no silly birds are going to make it inside. I have to watch outside every now and again to make sure they know I know that they will try to get in the house.
I am protecting you humans from nasty birds.
Trance once told me birds were tasty, but I doubt it.
So excuse me while I look out the window. I have better things to do with my time.