Using this eye liner is easy. Just gently hold the liner and draw a smooth line along your lash line. For a more dramatic look, you can line your waterline too. When you're done using it, make sure to close the clamshell tightly to prevent it from drying out. Keep it in a cool and dry place, away from direct sunlight. Also, avoid getting it into your eyes. If it does, rinse your eyes thoroughly with clean water. When removing your makeup, use a gentle makeup remover to clean the eye liner off your skin.