He was more than happy to explain everything she pointed out, keeping the explanations simple where he thought the technology might be a bit different from what she knew, going more in-depth when he was fairly certain she'd know what he was talking about. And when Kaylee asked how fast the Enterprise ran... "Depends," he answered, grinning broadly. "I can get her up t'about warp seven, no trouble. Warp eight if I baby her a little." He went on to explain just how fast that was, which, all things considered was pretty damn fast.