Twilight laughed. It wasn’t exactly the sort of thing most dragons would have said. “But that wasn’t what alerted me.” She stopped right in front of him. “You know how many dragons bother to understand how ponies do things? I can count them on my hooves. But you… you moved around the underground better than anypony I’ve ever seen. You had ponies hiding us and giving us places to sleep and cheering whenever we came into the room. Most dragons don’t even understand friendship.”