Out of respect for Draco, Hermione waited until he was asleep to use the tracking spell on her own the first time. He was a perceptive enough wizard to know what she was going to do first, but there was no reason to flaunt her decision in his face. It was always going to be a sensitive subject between them. While it wasn't at one point, a lot changed in the months since she'd last been a guest in his home. He knew it and she knew it.