Contrary to Draco’s expectation, the room is not separated into Hermione’s people and his – the guests are actually mingling with their drinks and little plates of food. They all beam at the entrance of Rose and Hermione, who walks straight toward the center table with the big cake on it. Draco goes to join them as she seems to be rousing everyone to sing the muggle birthday song she taught him, but Percy stops him short. 