Using these cartoon decals is super easy. First, clean the surface where you want to apply the decal to make sure it's dry and free of dust. Then, peel the decal from the backing paper and carefully place it on the surface. Smooth it out with a credit card or a flat object to remove any air bubbles. As for care, avoid using abrasive cleaners on the decals. If they get dirty, you can gently wipe them with a soft, damp cloth. That's all you need to do to keep your decals looking great for a long time!