He's not 'Doc', here. But that doesn't mean he doesn't lift his eyes to the voice a few yards away and focus his attention on the young woman calling out.

He knows it's her. It has to be. He could recognize that voice anywhere. Even if it's a little younger than he's used to hearing...

(What if she recognizes him? What if the timeline...)

He tamps down that wave of mild worry, and quickly at that.