It's definately mascara.. Opens up your eyes, makes you look fresh. But concealer also works wonders for when you've had the worst night's sleep..

But...

Perfume is my fave instant pick-me-up. Because so many scents can evoke so many different emotions in a person, nothing beats a quick spritz of your fave perfume to boost your energy and brighten your mood. Besides, everybody loves someone who smells fantastic! But it doesnt count as a beauty product though..

Straightening my hair and mascara so my eyes look brighter, white eyeliner helps as well because it makes your eyes appear larger :)

Blush. It's like an instant pick me up. It makes me look more vibrant, and revitalized, even when I've had very little sleep.

A great volumizing mascara... if I leave without applying it, the entire day I find myself worrying about it!

Straightining my hair, wearing eyeliner, and eyeshadows

I would have to say straightening my hair.