for some tips, we visited mary kate steinmiller, a fashion editor at teen vogue. what aspects of a person's physical appearance do others notice first? >> i think that having general cleanliness and having well-groomed hair and nails is always really important. >> what are some of the wardrobe basics a person should start off with? a>> it's always good to have a white, button-down blouse. it's crisp and fresh. a simple blazer that's fitted and not too boxy is great to have, and some floral dresses that you can lay your cardigans over are perfect, too. >> with the help of three intern volunteers, mary kate gave us an informal fashion show. and don't worry, guys -- she included some tips for you, as well. this is lizzy, and lizzy is dressed a little bit too conservatively, a little too serious, old for her age. you know, it's a full suit. it doesn't really seem like it's young and fresh and doesn't show any of her personality. so now lizzy is dressed with a blazer, but she's doing it as a "do." this is actually a blazer from the kids' department, which is a great wa