text: According to the article people are able to tell if you are having a bad day. People can not tell what is wrong with you just because you look sad or upset. Vinci studied human anatomy to help paint facial muscles that can convey certain emotions. If you look at the painting of Mona Lisa you would be able to tell from her facial strututres of what type of mood she is trying to show. When looking at the Mona Lisa , it really intended to make you smile and in a happy mood.