To use these Demonia Mary Jane pumps, simply slip your feet in and fasten them if there are any straps. They are suitable for various occasions like parties or evenings out. When wearing them, be careful on slippery surfaces as the high heels may affect your balance. For maintenance, use a soft cloth to wipe off any dirt or dust after each use. Keep them in a cool, dry place to prevent damage to the material. Don't expose them to extreme temperatures or direct sunlight for long periods.