1. Brighten up your eyes with white eyeliner.

White eyeliner is the new black. Makeup artist Alice Lane used it at the spring 2014 Tibi show because it instantly makes you look awake. Want a more subtle look than this model's? Line your inner, lower lash line only.

2. Tie a scarf around your neck to create a cool-girl bend in your hair.

It looks like something straight out of 50 Shades of Gray, but it's actually the latest and greatest in making hair waves. "We're wrapping these scarves around the models' necks to create a slight lived-in bend in the girls' hair," says Guido, the hairstylist at Marc by Marc Jacobs. Tie the scarf around your neck while you're doing your makeup, and then untie it right before you head out.

3. Before painting your nails, roll the polish in between your hands to avoid air bubbles.

"Right before you're about to paint your nails, instead of shaking the bottle to mix it up, take it between your two hands and roll it back and forth," nail expert Miss Pop said backstage at Emerson. "Shaking the polish creates air bubbles in it, which makes the paint go on less smoothly."

4. Use a fluffy eye shadow brush to apply your lipstick for a slight ombre effect.

"Using a fluffy eyeshadow brush to apply your lip color gives it that diffused effect around the edges," says makeup artist Val Garland at Monique Lhuillier. She then suggests intensifying the color in the center of your lips, giving that I-just-ate-a-popsicle finish, by picking up a flat brush, swiping it over the lipstick, and pushing the color onto the middle of your mouth only.

5. Use a fan brush to apply mascara to avoid clumpy lashes.

"Instead of coating your lashes with the brush your mascara came with, load up a tiny fan brush with the formula and paint it over your lashes from root to tip," explained Garland at BCBG. "This allows you to really get close to the root and make the lash line look full, while completely coating each lash. But don't worry, it won't leave you lashes looking like Tammy Faye Baker when you're done, since the fan brush helps control the amount of mascara being transferred onto your lash."

6. Hold your curling iron parallel to your head rather than perpendicular for natural-looking curls.

"To end up with a more natural curl, turn the curling iron parallel to your hair rather than perpendicular," advises Laurent Philippon, the hairstylist backstage at BCBG. "Wrapping it around the barrel this way helps elongate the curl as well."

7. Create horizontal nail stripes with a striper brush and rolling your finger from one side to the other.

A striper brush is a long, skinny brush you can pick up at any art supply store. (Alternatively, you can try a clean liquid eyeliner brush.) "Anytime you're drawing horizontal stripes on your nails, turn your finger on its side and then with your other hand, hold a thin striper brush straight out and parallel to the nail you're painting," explains nail pro Deborah Lippman backstage at Kate Spade. "Then, keep the brush still and, keeping your finger in place, roll the nail you're painting away from the striper brush. Doing this will automatically help you draw a straight, not shaky, line."

8. Change up your look by opting for a matte, instead of shiny, finish when it comes to your hair.

Shiny hair is always gorgeous, but matte hair is the new hotness. To tone down your sheen, "use dry shampoo as your last step," said hairstylist Guido backstage at Alexander Wang. Just be sure to get one that's clear so that it doesn't leave residue behind.

9. Contour your cheeks quickly by sucking in and applying bronzer in the center.

Makeup artist Katie Jane Hughes suggests using a cream bronzer. "Then, buff it out slightly with a soft blush brush to diffuse the edges."

10. Make your braid stand out by weaving the sections under, not over one another.

This hairstyle looks daunting, but it's actually easy. Braids usually blend in with your hair, but to get yours to "pop" off of your head, like the model's above, part the hair and start braiding from the hairline down, weaving the three sections under themselves rather than overtop of one another, advised hairstylist Esther Langham at the Kenneth Cole show.

11. Leave your liner disconnected to make your eyes look bigger.

"When you're applying black eyeliner, don't connect the top and bottom lines because it closes off the eye," said Kabuki, the makeup artist behind the look at Zac Posen. Where the lashes begin and end is where the liner should start and stop.

12. Try a French mani that uses two shades in the same color family to avoid looking like you're straight out of Clueless.

White tips are so over and have been for a while. But nail pro Gina Edwards recreated the old look at Zac Posen. "Pick two shades in the same color family — a light and a dark one — and paint the darker color on as your main shade. Then, grab the lighter shade and apply it to your tips using a tiny sponge. Roll the sponge back and forth to give it that gradated effect, and then add topcoat." Gorgeous.

13. Apply glitter to the center of your eyelid using a wet brush to keep it from falling all over your face.

I love the look of a fully glittered eye. However, if you want to add just a little gold glitter to your upper lid, "apply it only to the center of the lid using a wet brush," said Diane Kendal, who did the makeup at Jason Wu's show. "This helps the glitter stick to the brush, allowing you to apply it exactly where you want, but it also keeps it from going all over your face."

14. Properly part your hair using your nose as a guide.

Here's a quick way to part your hair perfectly in the center: "Run your pinky finger up the bridge of your nose and create the part exactly in line with it — even if your nose is a little crooked, it will be centered for you," said hairstylist Odile Gilbert, who created this look at Jason Wu.

15. Get a second-day "didn't try" makeup look by applying eye makeup and then wiping it off.

You love what second day hair looks like, right? But what about second day makeup? "You look better the day after you've worn a lot of makeup," says Gucci Westman, the makeup artist at Rag & Bone. To create this look, she suggests this trick: Apply whatever eye makeup you were planning on wearing (at Rag & Bone Gucci applied brown and grey shadow on the lids and mascara and liquid liner), dab Elizabeth Arden Eight Hour Cream all over your lids, and then wipe it off with a makeup wipe. "It just leaves a little remnants behind, giving you that lived-in look."

16. Get bushy brows by topping them with mascara.

For a look like Lily Collins's, apply a brown mascara to brows with a tiny fan brush, says Tom Pecheux, the makeup artist at Peter Som. "This tints any baby hairs that sit around your true brow, building your brow shape in the most natural way. It's also a great way to color grays along the hairline and part."

17. Perfect the messy hair look with a cocktail of dry shampoo and a lot of hairspray.

While creating the look at Zac Posen, Gilbert suggested to go for "fucked-up texture." The key is to "curl all of your hair, then use a lot of dry shampoo, a lot of hairspray, and then mix it all together on top of the head, and secure it with hair pins everywhere. And if you want a romantic finish, add silk flowers everywhere with pins."

18. Create an ombre nail look by purposely messing up polish with your fingers.

"Paint your nail using a base color (at Nicole Miller, manicurist Katie Jane Hughes used a gold glitter called The 444 from Butter London) and let it dry," says Hughes. "Next, trace the tip of your nail with black polish (like The Black Knight), as if you were doing a French manicure. Then, take your thumb and immediately pull the color downward, creating a gradated effect. Repeat that step again to deepen the black and that's it!"

19. Create the illusion of healthy hair with a hair wax and dry shampoo combo.

Make the damaged ends of your hair look thicker and healthier with this trick that Philippon used on the models at Lacoste: "Apply a light layer of wax to the ends, followed by hair powder." (He used Bumble and Bumble SemiSumo Wax and the brand's Pret-a-Powder.) The wax helps hold the powder onto the hair, and the powder expands on the ends creating the look of thicker hair.

20. Use your heat protectant product as shine spray.

"Apply it as a finisher instead," says Paul Hanlon, the hairstylist at 3.1. Phillip Lim. "The oil-based texture adds the perfect amount of shine." Now, you don't have to douse your hair like he did to this model's hair below, but to add a subtle shine, one or two spritzes will do.

You're welcome.

Photo Credit: Imaxtree/Getty Images/Patrick Butler

Carly Cardellino Carly Cardellino was the beauty director at Cosmopolitan.

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