the cat and the passerby

I tend to sit at my computer in front of a window that looks down on a street. I like to listen to what is going on with passerby's and with neighbours. I like to think that I am just being curious and aware of my surroundings, maybe I am being creepy and gossipy, either way there tends to be enough curious going on's in and around the apartment.

I was sitting here while making dinner and saw the cat outside. This cat is very friendly and would likely go home with just about anyone. A passerby noticed the cat and decided to sit down on the sidewalk to visit with the cat. Maybe they thought it was lost, maybe they thought it needed a new home, when really it was just having a visit with the passerby. As I was watching the cat visit with the passerby I noticed that this passerby was watching me. (I have noticed that many people tend to look up at the apartment as they walk by, maybe I am not as invisible as I think I am and are pointing at the creepy girl in the window staring at them, or maybe they just like the flag that hands in our window or maybe they are just pointing out how weird our apartment building looks (pretty damn odd).)  I ignored him and went back to my internet browsing, looked back and he was still staring, what should i do? I did nothing...eventually he left. Thank goodness for locks on doors I suppose.