text: Another reason why it woud be helpful is because you could use it on anyone not just students. My first reason why I think it would be a brillant idea would be an example such as this, if you went to class one day and seen your friend upset you would be able to look at her and know shes upset but if you asked her and she said no I'm fine, she would be lying. If you had this software update and you used it on your friend it would say she is 70 percent upset and 30 percent mad. So now you know she is upset most of the time and you could change that by talking about things with her letting her parents know. Little things like that could change someones life forever.