Just watch and enjoy for the most part. Its really annoying so use it on anyone that you think would get annoyed (even you). It annoys me all the time and it's really funny and crazy. :) So yeah ... :) :P :D
I think my friend was using a meow noise that was seriously annoying and I tried to do the same thing. I guess this can really annoy you for years if you watch it constantly. Please don't let them press the stop button. I tried to do it in code but it didn't work. :(