[Smiling back is, clearly, somewhat beyond Zenyatta. But somehow there is something in the tilt of his head, the way the angle of his eye-slots shifts with the slightest motion, the glow of his jieba brightening incrementally- they are all the expression he needs.

And how could he possibly fail to return such obvious warmth?]

Ah, yes. Your burden is clearly tremendous. Are you quite sure I could not tempt you to dance, my friend? I am sure someone could watch your flowers for you for a single song.

[Already he is holding out a hand, half-bowed as if in anticipation of a curtsey. The entire city is in high spirits, after all- and if he plays it up a little he knows he can get one or two nearby spectators to jostle Bardo encouragingly, you can't turn down an offer like that!]