Sirius wasn’t blind to the attention he was receiving when he entered the room together with professor Mulligan, aware that he was young enough to realistically be part of the course, which would up the the competition.<br/>He closed the door completely behind them but didn’t say anything further, just turned to smile at the class and the professor. He knew professor Mulligan to be less formal and more easygoing than most other professor he had encountered through his time at university, but he also knew better than to speak out of turn with the professor.