Using the Glitter Eyeshadow Pen is super easy. First, shake the pen well to make sure the glitter is evenly distributed. To use it as eyeshadow, simply draw the pen tip along your eyelid and blend it with your finger or an eyeshadow brush. If you're using it as an eyeliner, carefully trace the line along your lash line. For lip contouring, outline your lips with the pen. Remember, keep the pen away from your eyes to avoid irritation. After each use, make sure to cap the pen tightly to prevent it from drying out. Store it in a cool, dry place to maintain its quality.