text: With the new technology that Dr. Huang and Dr. Paul Eckman are developing, you can tell how your friend in schools are feeling. In the article, they said, "you can probably tell how a friend is feeling simply by the look on her face. Of course, most of us would have trouble actually describing each facial trait that conveys happy, worried, etc." The technology can give you way more details that just saying "mad", "happy", or "sad".