text: The facial action coding system is not totaly offical. In the story it says that it uses you face to tell what going on or something. They say that they can tell if it is a real smile or a fake one by your muscules. The muscles called orbicularis make croe's feet around your eyes, but then a fake smile, the mouth is streched sidesways using the zygomatic major and a different muscle called the risorius. Then is said that if an ad pops up and you are happy then the facial action coding system is going to think you like it then more and more are going to be poping up. Sense it said that it can tell eveything just by four face. The rusults won't be right. For people that wear makeup the facial action coding system is not going to get the right results. You might have a facial problem or something wrong with you muscles. That you wouldn'd be able to simle perfectly. Then it will give you wrong results