In the article "Making Mona Lisa Smile," the author describes how a new technology called the Final Action Coding System rnables computers to identify human emotions. Dr. Huang show varying degrees of expression not smiling nothing but Mona Lisa demostrate him is really good to bring a smille toyour face everyday she imagine how it would be to have a computer to know when you happy, sad, or angry like she says in paragraph 6 "if you smile when a Web ad appears on you screen,a similar ad might follow. but if you frown, the next ad will be different." Mona Lisa show them their is nothing to be sad or angry its much better having a happy face everyday insted of been mad everyday, your day would not be good you would be so bored and tired. so that's why is more better to be happy everyday of your life. sometimes you have problems but you need to keep going with your own life to be happy. and that's what Mona Lisa show Dr. Hung to become a happy man everyday not a sad and boring man or lonely.