First, look dazed. Then research. I can't stress this enough. Find something that sounds profound. Preferably something pacifistic. Like "Violence begets violence," or "Eye for an eye makes the whole world blind," and then end each sentence with the word "Brah." For example, "Violence begets violence, brah." Remember to do it in a typical stoner accent. If you don't know what a stoner sounds like then think of Keanu Reeves in every single role he's done. I hope this helped.