<human>:  How do I paint a room correctly?
<bot>: To paint a room correctly, you will need to prepare the walls properly first. Start by scrubbing the walls to remove any dirt and grease; then fill any holes or cracks with spackle or caulking. Once this is done, you will want to apply a coat of primer, let it dry, and then sand it lightly before painting. Finally, use a quality paint to paint the walls in two thin coats, allowing each coat to dry completely before applying the next.