Draco didn't want to sit just yet, standing by the bed, head cocked as he regarded Harry. "Feel free to call me Draco if it makes you feel more comfortable with such an intimate activity as this," he said dryly, a quirk of amusement lifting his lips. "And yes, this is the only place in the house where I can be assured of privacy. There are the typical muffling spells placed between the floors, and there are no portraits to overhear. Unless you'd rather go back downstairs and thus, as soon as my mother arrives back, have the portraits announce that you were here."
He drew out his wand and raised one eyebrow. "Has that been your experience in the past? It is not generally my preferred method, not that I've taught this particular skill. My daughter is, of course, too young to learn it yet. And frankly, I hope she never has to splinter her mind this way."