Getting a perfectly air-dried style starts in the shower. First, choose the right conditioner for your hair type says Sarah Potempa, celebrity hairstylist and inventor of the Beachwaver. This will ensure your hair comes out smooth and healthy.

For example: if your hair is prone to frizzies, choose a smoothing conditioner (Potempa recommends Aussie 3 Minute Miracle Smooth), $2.97; if your hair is color-treated or riddled with split ends, choose a deeply hydrating conditioner.

After you've conditioned, detangle your hair in the shower using a large toothed comb, says Potempa. Always comb hair while wet, never when dry, otherwise it may frizz and feel dry. Then, rinse your hair will cool water, which will close the cuticles of your hair and reduce frizz and split ends.

Don't even think about using your regular towel to dry your hair. You want a supersoft cotton towel or even a t-shirt, which will soak up moisture without making your hair frizzier. Williams says to gently wrap your hair into a turban, and leave it for about two minutes to soak up water. When you unwrap it, gently pat your hair dry (repeat after me: do not rub your hair dry).

Then, begin layering your products. "Layering means to begin with stylers that need to be applied closest to the scalp and proceed to mid-shaft and ends," explains Williams. Comb through to distribute the product evenly -- but don't comb through your hair more than twice, or risk the wrath of frizz. "Once your desired shape is complete, only handle hair as needed," advises Williams. "This will decrease frizz and bigness."

Remember: Products are your BFFs when it comes to air-drying your hair. "Water can leave hair dry with flyaways in abundance, therefore a light crème or drops of oil will make the difference between shiny soft hair or frizzy, dull locks," says Williams.

To give your straight hair messy, beachy waves, try this overnight recipe.

First, you need to start with the right product cocktail of lightweight stylers that have hold. Williams says to try a mousse, followed by a moisturizing cream. He recommends Phyto Professional Intense Volume Mousse, $24, and Phyto 7 Hydrating Day Cream, $29.

Then, divide your hair into four sections: ear-to-ear and top to the nape of your neck. Twist each section around a piece of cloth, then wrap into a bun and secure with a bobby pin. Grab a hairnet to keep your hair in place as you sleep. When you wake up, untwist your hair for "waves galore," says Williams. Flip your head over and gently shake and scrunch you hair -- don't even think about touching a brush -- and you're ready to go.

If you have straight hair, follow these tips for getting a sleek style that won't look greasy. Start with a moisturizing shampoo and conditioner.

Since straight hair tends to be oily, Williams says any product you use should be lightweight and only applied mid-shaft to ends (exception: volumizers, which should be applied at the root). Try a smoothing cream like John Frieda Frizz Ease Beyond Smooth Frizz Immunity Primer, $9.99. When hair is about 90 percent dry, apply a shine serum and then brush through your hair to further smooth it.

"Curly hair is usually dry hair therefore: moisture, moisture and more moisture," says Williams. He adds that curly hair must remain wet at all times when you're handling it, or it will get frizzy. Start by applying a hair cream that has some weight to it, but isn't greasy, to wet hair. (Try DevaCurl SuperCream Coconut Curl Styler, $28). Comb through once. "For curly looks with clear curl definition and elongation try this," says Williams. Grab medium-to-large perm rods or small hair rollers, and a fine-tooth comb.

"Making small to medium partings, about two inches wide begin at the nape and moving toward front (about nine rods later), braid hair and wrap around rods or rollers." When your hair is dry, remove the rollers, warm up more of your styling cream in your hands and pat onto sections of hair to unwind your curls. "This will hydrate and separate curls and wave."

"Tip: Do not comb, as hair will frizz. Only touch hair with cream on hands," says Williams. The less you touch your hair, the better.