You spend the first few hours after seeing that person deliberating why you find them so intriguing. Something about the depth of his eyes right? You go through the whole encounter again; attempting to relive each and every single moment (even if your interaction lasted less than a second and consisted of you staring at them creepily whilst they played pool). You zoom in on trivial details any other person would rightly bypass: the shade of lipstick, hair scrunchie design, T-shirt print. It all becomes unnecessarily necessary.
Soon enough though, they become nothing more than a 3 dimensional structure. A month after meeting this person everything just seems to become a part of your imagination. The only things you can recall about them don't even seem realistic any more and they become just another memory. They become this person you've created in your head. This broken scaffold of flesh and bones, the foundations clearly unstable and the only thing supporting the weight of the walls is the possibility that maybe they are exactly the way you've pictured them to be. You construct this person in your mind who's possibly completely alternate to the real life person.
You see, that hypothetical green eyed guy in the red jumper, however deep and intriguing he may seem, is probably nothing more than a green eyed guy in a red jumper. It's most likely he's just an ordinary teen with really nice looking eyes and an unhealthy laffy taffy obsession. And in the worst case, he could be a complete jerk (which would most definitely suck considering I was beginning to like the whole idea of this hypothetical green eyed guy).
People aren't always what you think they are and the chances are that your idea of someone bears no resemblance to that of the person themselves. That's the thing about the Spiegelman effect. It kind of leaves you wishing that reality was a little more blurred. Maybe then we'd all be a little like Margo Roth Spiegelman. Paper people certainly, but Margos nevertheless.