[His rambunctiousness isn't paired with drunken belligerence, but it is accompanied by a buzzing excitement. He's quite literally buzzing with positive energy, and around him are occasional sparks and flickers of light that go off like tiny fireworks, showcasing his positive yang energy roiling inside him.]

[Chongyun grins brightly as he watches Diluc show off that Pyro Vision.]

You're from Mondstadt?! Woah! There's so many people here from Mondstadt!! And you're right, I am from Liyue. You're really smart! I bet you might be as smart as Xingqiu. Do you read a lot too? He has more books than I can count.

[Well if the pancakes are being relinquished (read: taken), Chongyun will gladly dig into them, taking another big bite before continuing.]

Venti! That's the strange bard's name. So people in Mondstadt really act like him? Wow, Mondstadt must be such a strange place! I bet everyone spends their time singing songs and drinking wine!

[He chuckles to himself at the mental image he's conjured. A few more dreamotion sparkles spark around him.]

I'm Chongyun! I'm a really well-known exorcist in Liyue, from a really well-known clan of exorcists! There's no evil spirit that I can't banish away!

[He says it with a puffing out of his chest. He's proud!]