text: Using new techonology it can help student in calss to undersstand how world is bringing new things that can help millinons of people to recognize their emotions. It can make huge change for people who had problems of knowing their feelong or emotions. BY the way making a happy face in expriment also make you feel slightly happy. It may happen because we unconsiously imitate another person's ficial expressions. Making happy face caould reveal so much about the since of emotions.