To use your XENOS poster, simply find a nice spot on your wall where you'd like to display it. You can use nails or wall hooks to hang it up. Make sure the surface is clean and dry before you attach the hooks. As for care, keep your poster away from direct sunlight as it can fade the colors over time. Also, avoid getting it wet. If it gets a bit dusty, you can gently wipe it with a soft, dry cloth. That way, your poster will look great for years to come.