“In my grandpa’s time I believe,” Draco stated, even though he knew for a fact that it had been finished in his grandpa’s time. Still, Draco tended to downplay his own knowledge at time, not because he thought that people wouldn’t want to listen to him, but because he knew that it was better to seem stupid and vapid at times.<br/>While it did please him that Harry seemed interested in what he had to show and tell, Draco was still careful with not sharing too much. He really had no idea what the intentions of their foreign guest were and thus he felt like he had to stop himself from over sharing, not wanting to do something that would end up poorly for him.