This is an AWESOME instructable. The effect is you put your fist to your mouth and puff out your cheeks. You take your fist away and smoke comes out of your mouth. Please excuse the photos. They aren't mine. I don't know how to put photos on here.
Step 1: Preparation
NONE! Unless you count making your hand into a fist. So then, the preparation is to make your hand into a fist. Be ready to put your fist where your mouth is.