To use these Christmas Ohana posters and prints, simply find a nice spot on your wall and hang them up with a nail or adhesive hook. Make sure the surface is clean and dry for the best results. As for maintenance, avoid exposing them to direct sunlight for long periods as it may fade the colors. You can gently dust them with a soft cloth if they get dirty. And remember, don't try to wash them directly as it could damage the print. Enjoy your festive decorations!