peppy's friend

We have a reputation in the apartment building of attracting stray cats to our porch. This one has been coming around since the ice/snow storm in December, and I've been feeding him ever since. He is very talkative and sits on the chair outside the window just staring at our cat inside. Pepper just lays there on his little pillow staring back. Sometimes they go nose to nose (as you can see by all the nose prints on the window). I would let him out, but he doesn't have claws. So I'm afraid of what would happen. Since this guy talks a lot, we've named him Chatterbox. He's still pretty skiddish and doesn't let us get very close to him. Once he warms up to us, I'm going to try to catch him and take him to the Humane Society to get him neutered.