text: it says if an ad pops up on there facial action coding computer, and you smile the computer will have another ad pop up very similar to that. because the coomputer can detect that you liked the ad which could lead the computer to modify the lesson, like an effective human instructor. it also says that it could help u also with acting accrding to the facial feed back theory movingg your facial muscles not only expresses emotions, but also may even help produce them. a renowed drama coach had actors carefully reproduce smiling and frowning as a way of creating these emotions on stage.