text: Emotions expression can also being prentend them. Every single person has problems, and sometimes we are shy to let them know to other people, so we need our privacity, and we have to pretend that everything is all right, when maybe is not like that. If someone is sad, but he/she wants to look she is happy, so there is nothing to do, because is her/his decision. We have to think in the point of view. We can see on paragraph number 6 says "A classroom computer could recognize when a student is becaming confused or bored" what about if the student feels emberresed, if everybody that he is the one who does not understans a topic?