Was he really going to do this? It did seem a bit desperate (okay, more than a bit), but then again, he was sort of desperate. Okay, that thought was just sad. Almost enough to say forget it and turn right around to the Great Hall. But then, his Gyrffindor-ness kicked in and he opened the glass case around the bulletin board and stuck his hand-made poster over the notice about the Halloween Hogsmeade Weekend (they were way past Halloween at this point anyway).
Once he was sure the poster was stuck safely to the board, he quickly closed the case and hightailed it out of there. What, Ronan didn't want to be
caught sticking the poster up there. Hopefully, no one would recognize his handwriting at the bottom.