Neville was wandering the hallways, looking for something to do. His parents had both gone to the Ministry for some kind of court case, and Ginny was helping her mum with dinner, leaving him at a bit of a loss.
Walking past a room where there was a dim light, he glanced in and noticed Ron. He still wasn't quite sure whether Ron liked him or not, but it was infinitely preferable to running into one of the twins in the hallway. He took a tentative step into the room. "Hi," he said, experimentally. "Bit dark in here. What are you doing?"