Based on a person's picture, you have to decide if he is a computer geek or a serial killer. Go with your gut feeling and click on your choice. There are 10 photos. Your score will be given at the end.
I got 8 out of 10. But I think this has more to do with luck and figuring out the pattern in the quiz than understanding human nature. It's like a rock/paper/scissor tournament. Figure out what came before and it helps you guess what comes next.
And yes, I stole this link from a Julie Heller email. Sue me.