Collins--Best for: Straight hair (very curly girls should steer clear unless they’re okay with some height) A pixie is fun, playful, and fairly low-maintenance, especially if you keep it mussed-up like Lily Collins. “It’s great for super straight hair because if you have a cowlick in the back, you just wet that one area with water and you’re good to go,” says Heath. Styling Tips: All you really need is a blow dryer, which should be used to blast-dry the hair in all directions. To create a more c