Sister Halloween Costumes: Arya and Sansa From "Game of Thrones"
What to wear: Arya wears dirty burlap and leather clothing in Earth tones. For Sansa, you'll need a long, braided, red wig and a long blue dress.
How to act: Arya is a badass, so go around telling people about your "list." Sansa has had some rough luck, so if you could muster up some tears, that would be great.