Using your Envy KOS S7 stunt scooter is easy. Just hop on, grip the handlebars firmly, and start rolling. When you're ready for stunts, use the responsive wheels and fork to pull off jumps and tricks. Make sure to wear proper safety gear like a helmet and knee pads. As for maintenance, regularly check the brake system to ensure it's working well. Keep the wheels clean and lubricated to maintain a smooth ride. If you notice any loose parts, especially on the handlebars or the deck, tighten them up right away. Also, store your scooter in a dry place to prevent rusting of the aluminium parts.