<human>:  How do I paint a house?
<bot>: To paint a house, you will need to first prepare the walls by cleaning them, repairing any cracks, and applying a primer coat. Then, you can apply the paint using a brush, roller, or sprayer. For best results, use two coats of paint, allowing the first coat to dry completely before applying the second. Once you are finished, add a layer of sealant to protect the paint and ensure a longer lasting finish.