Use a small curling iron (holding it parallel to your head) and wrap small sections (about an inch) around the barrel for a glam, '40s look.
Do your entire head, curling all the way up on one side of the part. Vary how much curl you get on the other side so you leave a bit of super-smooth roots on one side.
Spray your whole head with a setting spray and a bit of shine spray when you're done.
MARIE CLAIRE RECOMMENDS
SMALL CURLING IRON like Revlon Studio 35 Professional Styling Iron, $6.99.
SHINE SPRAY like Sunsilk ThermaShine Detangling Shine Spray, $4.49.
SHINE SERUM like Motions At-Home Salon Smoothing Shine Serum, $5.99.
Nothing takes the sheen off shiny brunette strands faster than dousing them with hair spray. If you must shellac, follow with a spritz of shine serum. Find out what the most common at-home hair-coloring mistake is, and how to avoid it.