For maximum coverage use the fingertip to the tap shadow on the eyelid.
A flat fine tip synthetic brush is perfect for detailed application close to the lash line.
Using a fluffy brush that has good movement, dip the tip of the brush into the shadow and apply with a ''windshield wiper" movement throughout the crease of the eye.
This will make your shadow appear soft and diffused like a total pro. When finished, close that sucker up tight.
Don't leave the jar opened for long periods of time, you may lose some of the magic that makes the SUPER SHOCK SHADOW so amazing.