text: I feel like this would be great thing for science. You can do great, fun projects with this at school. You can use it with your friends. Knowing someones emotions without having to ask is a good thing. When feeling sad and nobody knows it but then technology comes and someone knows and they help you be happy again, or become friends. You can help people become more happy by knowing they're sad and make them smile. You can know what your friendis feelings or your boyfrind/girlfriend. Let's say you don't want to talk about how you're feeling so the technology helps you speak without having too.