"And this is the shower's faucet." you explain, turning to Xiao expectantly

Even though the Adeptus is indifferent to you most of the time, you like to think the two of you are friends/neighbors at the Wangshu Inn. That's why on an uneventful day, you decide to explain some human customs to him.

"That seldom makes sense. There is a river to bathe in just outside." Xiao argues

Your palm meets your face. This is going to be harder than you thought.