Ask the expert: How to pick an eyeliner

Pencil liners can smudge, unless you find a good one that isn’t too creamy. For ease of use, choose a retractable pencil instead of one that requires sharpening. Once you’ve applied the eyeliner, go over it with a small amount of eyeshadow to help keep it from smudging and give it staying power.

Night Series Eyeliner in Night Flight, $28, NARS.