text: PROPER_NAME            If you were a teacher trying to teach a class with over 20 people with different emotions, how efficent would it be to know how all of them feeling? You can do that with FACS (Facial Action Coding System), created by Dr. Pail Eckman. This system classifys 6 basic emotions. It can sense happiness, surprise, anger, disgust, fear, and sadness. This is good for teacher who dont understand how their student are feeling about the assignment they assigned.