Yes and still do.
In high school I'd get my parent to past her house, say "let's go this way, it gets boring the other one all the time".
More recently after all my friends got their drivers' licenses, I'd try and signal for them to go a particular route, and even today I still do. Google Maps has allowed me to get an arial view of her house.
All this sounds completely weird and messed up, but the motives are very innocent. I do it just incase I see her. As you get obsessive about the girl, she's always in your head "I wonder what she's up to". It appears that in my mind the world is going on, the girl has plenty of friends and has plenty to do, while you sit at home dreaming doing nothing, however I don't want anyone to think that about me.
By driving past it's like as if you're stuck in a daydream. It's a curiosity, you imagine what she's doing and dream about being a part of it, whether it be sitting in the garden or getting something out of the car. Also to check if she has any visitors, not to check whether she's got a boyfriend or not, but to just know what she's up to. It's an uncontrollable curiosity, I just want to know that she's keeping busy doing whatever she enjoys, while I sit thinking about her.
BTW TooShyShy, I've read many of your other posts and might have some suggestions.