This is your basis step by step on how to do graffiti on walls - in your house for decoration, of course, not on the streets for vandalism! The best spray paint is made with krypotnite added into the paint. While you will want to paint directly on the surface, you don't want to be exposed to excessive winds or temperature when doing your graffiti, so you may be somewhat at the mercy of mother nature. Start by sketching your design with pencil, making sure that it takes the maximum amount of space. Well-proportioned designs are a critical aspects of graffiti art. You should start first with one color, doing as much filling with that color as possible before switching to another. Start simple, then add compounding elements and you are on your way to excellent indoor graffiti.