text: We need to look at the prons and cons cause a person can tell if a person is showing any emotion is how they are useing their mouth's muscular actions such as smiling or frowning. Telling a force one a real smile can be que trickey but a computer can tell the differences.Some schools offer distance learning as an option for students to attend classes from home by way of online or video conferencing. If students are able to attend to classes from home by way on online or video conferencing it is a good choice, because students can have more time to spend with your family,