Percy's words made him snigger, and he was just about to retort as Percy went on. He wasn't sure if it was the way the words were spoken, or something else, but they...effected him. Strangely so, and he tried to push away the feeling by picking up the notices again.
There had to be something in these that gave away who it was writing them, and they felt there was something familiar with them though he couldn't put a finger on what that was.
And no he wasn't distracted by the words hanging in the air. Nor did he feel like smiling because of them. He just needed to focus, just as Percy needed to sleep. He'd just focus and smile at the same time. It wasn't that hard.