There Are Many Many Styles... But heres a Few.
Preppy...
-Polo With Jeans and A Zip up Hoodie.
Pretty~Quite A Few For This One...
-A nice Sweater With a Cute tank Top. With A Pair Uf Khakis Or Brown Pants.
-A Long Sleaved T shirt With a tak top underneath. With brown Or Light Brown Pants.
-A White Or Red and Black Nice Shirt With Black Pants.
Sporty/Lazy.-
-Sweats and A T Shirt. With Yr Hair Up.
-Sweats and A Hoodie With Yr Hair Up
Casual-
-A Pair Of Jeans and A T Shirt Or A Polo .
You Can Find All these Clothes at stores like Hollister Aeropostel American Eagle Wet Seal And Peebles.
Hope I was A Help