By
eHow Fashion, Style & Personal Care Editor
Difficulty: Moderately Easy
Step1
Choose a very thin makeup brush with a long handle so that you can hold the brush in place on your cheek if you have to while applying the liner.
Step2
Cut the bristles at an angle if they don't come that way. This cut is especially helpful if you have trouble drawing a straight line on your lids.
Step3
Start at the center of your eye and sweep outwards. For beneath the eye, reverse the stroke, moving the brush from the outer eye to the inner. You should have the largest part of the angle on the beginning of the stroke.
Step4
Purchase liquid eyeliner that comes with a brush. It will be tailored to the kind of makeup that it is paired with. Trim the brush if it is too big for you to use.
Step5
Know your budget and choose a liquid eyeliner brush to fit that. While the more expensive brushes will last longer for the most part, a more inexpensive brush can be used to the same ends. Keep it clean and let it air dry to prolong the life of the brush.