text: Therefore, compter can recognize people when they are happy or sad. Even people can hide their emotions from people but not computer. I think it will help us to make others feel better when they are sad and they won't admit that they are sad.             Do you know why people hold polls on the internet ? So many people can't decide on what they should do, so they seek other peoples opinions . With the internet it's even easier to seek other peoples opinions and not just your friends opinions through straw polls or discussion threads on the internet to help form their own opinion or make better choices. By seeking multiple opinions can help people make better choices because it gives you a wide rang of opinions to help make a better decision and it also allows you to form a truly unbiased opinion.