well when i did it, we cut a 2 liter in a lil over half and used the top half. Then you get to knives stick them on the stove(gotta have the one kinda stoves not elextric) and then one they are red and glowing stick the bud between then and rub them together on the bud, not sure how to do it one person, cuz one person holds the 2 liter to their mouth and sucks well one person is doing the burning....so yeah.....