[Heizou can't help but laugh, something real from deep in his gut that he doesn't actually let out very often. He's well aware of what Venti is up to, but since they are playing a game he's happy to roll with it.]

I'll keep that in mind! So on your birthday I'll make sure to get you the best, most bitter tea I can find. And I'll drink some sweet dandelion wine in your honor, imported straight from Mondstadt!

[He finds himself smirking as well, eyes sparkling with mischief.] I assume you'd love a tribute like that~