text: In my mind i think i can tell how a person is feeling. If it happy, sad man depressed, or even just trying to hid it. Even your friends and family . For example in the article it says " In fact, we humans perform this same impressive " calculation" every da. for instance, you can oribably tell how a friend is feeling simply by the look on her face. Of cours, most of us would hve trouble actually describing ech facil trait that conveys happy, worried, etc."