It sounded to Harry like she might actually have some kind of gift, but it wasn't exactly like the way it had happened to Trelawny. More like... when Harry was mentally connected with Nagini. And wasn't that something he didn't want to think about ever again.
"Maybe you did really see it. But I would think that even if it is real, it's not something you can just control that easily. You probably can't force it to happen. But... what do I know, anyway," he added, shrugging his shoulders. "I do know that sitting in one spot not moving for an hour probably isn't going to much but make your feet numb."