Welcome "aBoard", vicrine. Now this is an interesting question (the window bit, I mean - personally speaking, I've been unable to gaze at my own navel for quite some time ) Whilst I'm certain there wwill be some sesquipedalian word or phrase, round these parts, we call it "nosey-parkering!".

Incidentally, there is a well developed etiquette, among people who live in terraced houses that have no front garden, to do with if, when and how one may gaze in through your neighbours front windows!