1) The "just got out of bed" look - hair that's been painstakingly 'tousled' and knotted for at lest two hours, the obligatory university or Abercrombie and Fitch hoodie, and jogging bottoms or pyjama bottoms (if on the way to the shops) tucked into the obligatory Ugg boots.
2) The "ooo I'm such a hippy chick" look - the tousled, knotted hair complete with plaited headband, massive men's shirt cinched in at the waist with a belt, leggings in a variety of shades and gross colours, and of course the Ugg boots.
Ra's are most commonly found speaking with lisps and like they've got plums in their in their mouths in the majority of University cities of the UK, particularly Oxford, Leeds, Durham and Bristol, as well as Topshop's nationwide.
Scenesters will also try and get in on the act to try and be ra's
P2: "I can, she's a ra."
P1: "Oh that explains it all then."