text: Dr. Huang did research on peoples emotions and how people showed their emtions in ways, that he did know how people expressed their emtions with how their face looked to see their emotions show. Dr. Huang looked at the painting of Mona Lisa that Da Vinci painted to show Mona Lisa's emotion in the painting to show, how she felt about being in the painting to express how Da Vinci and Mona Lisa both felt the paintg that both of them liked the painting. Da Vinci emotion to paint a picture of Mona Lisa he felt happy, but he also that she was happy about him painting a picture of her being happy, mad. In conclusion, the author tells about how to identify human emotions and how they express them in ways.The technology to read a emotional expression is not valuable .Because computer are wrong everyday they are the smarts thing on earth but they still get stuff wrong once in a while . They don't know the true feeling of happy and sad . They just computers .