1) practice on cardboard in your garage. 2) do not spray when a slight wind 3) use a tip for out door spraying 4) stay about 10 to 12 inches from the surface. 5) keep the gun perpendicular at all times to the surface. When you get to the end of your arms reach to the left or right, the gun should not be at an angle to the surface, it should be straight 90 degrees to the surface. 6) When spraying from left to right, the next stroke below that should overlap the previous lap by one half. 7) buy a spray shield for keeping it off areas that you do not want it. This is held by one hand and the other is spraying. Mask off and use 6 inch butcher paper to cover brick area and any other area that you do not want spray on. 7) OVER SPRAY IS YOUR MAIN CONCERN. MOVE YOUR CAR AND NEIGHBORS A GOOD 75 FEET FROM THE JOB SITE. VERY IMPORTANT. 8) unless you are ready and practiced allot, you could make more of a mess than you anticipated. I am serious. This should be left to the professionals. 9) Most paints are acceptable for spraying unless, they are real thick. You need to ask the dealer what brand is best for your application. 10) Don't let the hose lines stay in the hot sun. Clean out the rig thouroughly.