Webshow Advertising and more help! ;) thanks <3?

Hi! So me and my friends have this webshow. Its called My Life: At School. Basicly its about us doing stupid and funny things at school to eachother, the teachers and other students. (link: www.youtube.com/mylifeatschoolaus) Anyway weve been Getting some view but not many and we were wondering how can we advertise our video for free and get the views up and more subscribers! And also If you have any ideas for as at all no matter how dumb, stupid, gross, scary or funny they are we will do them at school or out in public! And what do you think of it? Honest feedback thanks <3