Not many humans believe this is possible? Come on, you gotta give us a little more credit than that. You extra terrestrials think you're so slick and that nobody notices your disguises, you look just like a human and you think you blend in. In reality, we do notice. We have a phrase for it, called "uncanny valley" where our instincts tell us that something is off. You may look human and act human, but we know better. We can tell