For months, now I've seen a cat in the window of the apartment below and across from ours.
I've tried everything from making funny faces and jumping up and down to banging on our window to get it to look up and wave a paw hi...or at least acknowledge my presense with a look.
The cat refuses, for what ever reason, to respond.
Sneakers says she had no success either.
I've had enough!
Now, when ever I see the cat in the window I spend a few minutes in our window.....still hoping it looks up. :-D