Make your brunette hair more interesting by adding coppery highlights. A fun way to change up your style is also to give yourself a strict center part, pulling small sections at the front down to flatter the shape of your face and soften the look. By tying the rest of your hair back into a ponytail, you make this look perfect for the office: practical yet laid-back. To get super-smooth hair, use a serum and if you've got natural waves, use a flat iron to take out any remaining kinks. One other thing, if you've got highlights in a bold color, you should try to keep your makeup subtle as you don't want to overcomplicate this look.