"Yeah, something I kind of picked up..." Peter half-smiled.

At the comment that he would have picked up walking through walls, Peter's eyes widened in surprise. He might have gotten it from someone else, but until they told him (or he triggered it accidentally), he never really knew. And the voice thing was just... wow.

"No wonder Sylar's after you," he muttered, still surprised that somebody could have that many abilities. It was amazing. "And no wonder you managed to escape," he grinned crookedly. "The voice thing - is that the persuasion you were telling me about?"