Using your Deejo knife is straightforward. To open it, just use your thumb to slide the liner lock and unfold the blade. It's great for a variety of tasks like cutting ropes or opening packages. When you're done, close it by pushing the blade back and locking it in place. For safety, always keep your fingers away from the blade when opening and closing. As for maintenance, clean the blade with a dry cloth after each use. Avoid using abrasive materials that could scratch the matte finish. Store it in a dry place to prevent the ebony handle from getting damaged by moisture. And if you're carrying it around, use the belt clip to keep it secure.