What to wear: A wavy white shoulder-length wig, black pants or leggings tucked into black boots, and a black tunic with a big red Targaryen sigil on the left side. If you want to go all in, spray paint the top of your wig gold, and glue or tape pieces of gold paper in the shape of droplets to your cheeks and shirt to mimic the moment Khal Drogo mercilessly dumped that liquid crown on Viserys's head.
How to act: Rude, hoity-toity, and as if you're the smartest person in the room (even though you're not by a long shot).