[Ah! She beams at that.]

I'm proud to hear that, Lestrade-san! I've heard it can be a very difficult thing, to stop smoking; I hope you haven't given up on that goal. [... Hmmm. She pauses.] Um, are you hungry? I noticed you were on the journal, and I figure you must be hungry if you haven't already eaten...

[She's got some boxed lunches taken from the restaurant for her fridge in a bag, and a half-loaf of banana bread, but it might go to a good cause here.]