To use these Water Game posters and prints, just find a nice spot on your wall and hang them up using nails or adhesive strips. Make sure the surface is clean and flat. As for maintenance, use a soft, dry cloth to gently wipe off any dust. Avoid exposing the prints to direct sunlight for long periods as it may cause fading. If there's a small stain, you can try using a mild cleaning solution on a corner first to see if it works.