The same acting choices by Ben. See that mouth? Eyes averted to the side after a smitten grin, then lips pressed briefly together and nose wrinkling before the eyes come back again to one ask for “Dinner?” and the other time–well, the other time ends like this:
We all know this is how that night ends for Sherlock and John, too.
Just a pity that everyone thinks we’re hallucinating.
You coud almost think Ben is a good actor who makes, dunno, deliberate choices or something???