[ He's calculated all the ways this could go wrong, all the ways that are the best bet. He doesn't want to involve a stranger, but he doesn't want to let the best possible course of action slip from his hands.

So he slides up next to her, matching her pace as she walks, and wraps his hand around hers.

He offers her no explanation: just a smile, as he silently mouths 'act natural' ]

Sorry, sorry, I know I'm late! Tell you what, we'll do whatever you want today. I'll spend however long this outing lasts trying to atone for my misdeeds, okay?

[ He spares the nervous looking man that he's tailing a quiet glance. But it's so brief, and immediately his smile and gaze are her's once again. ]