Molly Hooper: "Listen, I was wondering... maybe later, when you're finished..."
Sherlock: "You're wearing lipstick. You weren't wearing lipstick before."
Molly Hooper: "I, eh... I refreshed it a bit."
Sherlock: "Sorry, you were saying?"
Molly Hooper: "I was wondering if you'd like to have coffee."
Sherlock: "Black, two sugars, please. I'll be upstairs."
[Sherlock walks away]