How to look like a teenager?

Shop at places like Abercrombie, Abercrombie & Fitch, American Eagle, Wetseal, Forever21, H&M and Aeropostale. Also wear Vans. Make sure to wear small dangly earrings, too. Also, take care of your face--wash it every night. Put on makeup, too; dark brown eyeliner on your top lid, black or dark brown mascara, concealer, blush and sheer lip gloss. Also straighten, crimp or curl your hair. Good luck, hope I helped! :)