A Few things , were old shoes because they will be full of overspray when you are done spraying your car , and I assume you are going to wear a "Spray Suit" that helps a bunch with dirt , be aware where the 'Air Hose" is at all times , do not step on the hose while it is on the exhaust grate as you will loose Air Pressure at the Gun for a split second and paint will dribble on your car. I assume you are shooting "Solventborne" paint?