text: This unique piece of technology can help out with so many things. It can tell when you are upset, scared, worried, angry, and bored. Every classroom should have one of these. It would make being able to read people so much easier. It would also keep the students interested.Do you really think aliens exist? It is belived by some that on mars aliens shaped a type of face on the planet. Others belive it is just a natural land form with a funny shape that looks like a face. If you are one of those people who think aliens shaped it you will think differnt by the time your done reading the essay.