Using your Deejo Knife is a breeze. To open it, simply push the liner lock to release the blade. Once open, the liner lock will keep the blade securely in place for safe use. When you're done, push the liner lock again and carefully close the blade. As for carrying, use the belt clip to attach it to your belt or bag for easy access. When it comes to maintenance, after each use, wipe the blade with a dry cloth to keep it clean. Avoid exposing the knife to extreme heat or moisture for long periods. Also, don't use it for tasks it's not designed for, like prying or cutting very hard materials. This will help your Deejo Knife last for many adventures to come.