Orin saw her scale a building, jump from fire escape to fire escape, then land back on the ground. Show off... he thought as he changed from running on the ground, to now running paralell to the ground...by running on the side of the building walls. He quickly caught up to Rowan by going from sprinting on the wall to performing a series of mini-lunges. "You hop up buildings, I run up them" He then stopped when he got a fair distance ahead of her, his feet still hooked into the walls.