text: The last argument I am going to state on why the FACS would be valuable on detecting students emotions is that the technology could tell whether a student is telling the truth or not. The article states in paragraph 8 that usually when someone squint their eyes slightly, to produce wrinkling at the corner of their eyes usually means that their not being thruthful. FACS uses muscle clues to determine whether a person if being truthful or not. This would be great in a classroom. For example, if someone is being bullied and they tell the teacher but the bully says he isn't bullying anyone, this would be great for the teacher. The teacher would know which one of her students is telling the truth.