There's a stuttered unfinished motion as if Zhongli is deciding whether he should offer a hand in assisting Hythlodaeus or if such a gesture is too forward for a first meeting. Either way, it seems he's too slow and his decision remains unmade by the time that he is standing. Ah well.

"Now I feel like the rude one as it seems you were quite comfortable where you were.
But I would welcome the company and any tips to make sure the drink is to your liking."

And off they go, Zhongli stepping carefully around Hythlodaeus's little nook before heading back toward the entrance to the library. He does watch him out of the corner of his eye for the first few moments to ensure he doesn't outpace the other.