Makeup tricks for the subway

I'm curious — have you ever attempted to do your makeup on the subway? Yesterday morning, I was en route to work when a fellow passenger on the N train started to quickly (and efficiently) put her face on. I stared at her in complete awe of her talent — from her steady hand to her technique, I was beyond impressed. She even broke out her eyelash curler to curl her lashes while the train bounced all over the tracks. Do you ever do your makeup for work on the train? If so, what's your secret to getting it right?

(Image via Lovelyish)