i think we should use the facial action because you can go anywhere and see how pepole are today to see if they are mad or angery sad and etc. The facial action coding system should be use in class room so we can see how student are feeling and to see if they are having a good day or a bad day so we can use the facial action coding system to see there facial expersion to every student in class in a way did making a happy face make you slightly happy in the artical it tells us by making a happy face your muscles not only expresses emtions but they will also may even help produce them. Yes we should use the facial action coding system in schools or anywhere in stores,work,airports so we can see how peoples facial expresions are and so we can see if can help them or talk to them so they can have a smile on there faces