Shiro flattened his ears and frowned at Norene's remark, exhaling sharply through his nose. He gave a nod and a slight smile to Jack, and then followed Norene to the stairs. He took the stairs carefully, sliding his free hand along the railing as he went down. He kept his ears perked, listening for the others down in the subway or any approaching Zygotes. He kept his guard up for the Zygotes as well as the other people in case they weren't too friendly.