When layers are cut right, they give your style movement and versatility. Done badly, they can make your hair look wispy—or, worse, like you have two separate haircuts.
Be honest. Explain to your stylist exactly what your routine is each morning. Some layers look good only if the hair is straight, and if that takes more work than you're willing to do, your stylist needs to know that.
Start slowly. If clients are nervous, I introduce them to the concept by cutting just a few layers near the face. Remember: You can always add more, but once you get bad layers, you have to grow them out—or cut your hair shorter—to get rid of them.
Go long. Short layers rarely look good and make hair look thin at the ends, but long ones are great on almost everyone.
Blend in. You never want to see a distinct line of layers down the side of the face. Ask the stylist to avoid hard lines in the cut. If the layers look obvious once your hair is dry, ask him to soften the lines with thinning shears.