[ Listen. He has an Image™ to maintain, and the more people reduce him to simply being That Tea Guy, the easier it'll be for him to amble around without drawing too much attention.

Such as....right now! The happily-ever-after (?) reunion between girl and guardians occurs, The Knave performs one last magic trip for the road, and Wriothesley waves genially at the family with a farewell of 'Stay safe!' before they all go their seperate ways. And then it's just him and The Knave, and he's waving for her to follow as he sets off.

But they're both adults and competent, which means they can engage in a bit of chit-chat as they head down the street towards their destination. ]

I have to say, I didn't expect to see you here. [ He glances around them, though more for dramatic affect than any actual investigation. ] Should I be expecting to see anyone else show up in the next few minutes?

[ Just because he hasn't seen a hair on a single recognizeable head doesn't mean the same goes for her. ]