Using these glasses is easy. Just open them up and put them on your nose. They're foldable, so you can easily carry them around in your bag. When it comes to cleaning, use a soft, clean cloth to gently wipe the lenses and frame. Avoid using rough materials as they may scratch the glasses. Also, don't expose them to extreme temperatures or chemicals as this could damage the frame and lenses. When not in use, store them in a protective case to prevent any accidental damage.