text: For example, if you are sitting in class and you are doing something online, the computer can tell if you are bored and adjust itself so you are more into what is going on, or the teacher can come over and help you out too. It could also sense when you do not like an ad, all you have to do is smile or frown at the ad, if you smile you should get more ads like it, but if you frown it will try to find an ad you will be interested in.