Jiang Cheng is acting weird, but Wei Wuxian still knows his brother all sorts of well. He can tell that Jiang Cheng is tense, and also taking them by a really specific route. Probably one for avoiding people, since they don't meet any. ...He knows what his part of that is. Stays quiet, and follows closely, and keeps his head down so if anyone does see them at least Jiang Cheng can look like he has his trespassing submissive in hand. Which gets unfortunately harder when they stop being near woodpiles and start being near buildings, because this still looks like a historical reenactment village, but also like a really cool historical reenactment village.
Not that historical reenactment villages are his area of expertise! But sometimes he's bored and picks up random documentaries and books and bothers his friends who are into one thing or another and bothers whoever he has to bother for outing permissions. And, it's hard to tell when he can't stop and look but he's pretty sure they used all historical wood cutting and carving and fastening here. He's not seeing any machined nails. He thinks they've used all historical paint! (...Is this the kind of historical paint that's toxic? You'd think his brain would bother remembering that part. Probably it's not the kind of historical paint that's toxic. Though it'd be kind of cool if it was and they were just that committed).
He definitely fails at not looking around, but he doesn't duck off down any side paths or hallways (even when - is that a library? Did they do it inside too, does that mean they have all the scrolls and everything) and he mostly catches himself getting distracted staring at woodjoinings before Jiang Cheng has gotten more than a few steps ahead. So points to him. (Given the 'no one had better see you' Jiang Cheng is probably not going to threaten to thrash him in the hallway, but getting physically dragged off instead of metaphorically would still not improve the situation).
The other thing he's distracted by is that he's really confused. Again, by more things, which he might have thought would be hard in a sequence of events that started with sudden teleportation. Why is the historical reenactment village entirely done up in House Jiang colors? And also House Jiang's style, if you adjust it a bit for the historical reenactment, and also House Jiang's symbol which is literally historically hand-carved into stuff.
They cross through a gate - which he's guessing is the private 'room', because Jiang Cheng relaxes - and there are even more House Jiang symbols, and - ok, he's being silly. Just because sudden teleportation is really weird doesn't mean that everything is that weird. Maybe Jiang Cheng is ...funding part of the fancy historical reenactment village, and so to recognize him they've done it all up in House Jiang's honor. Jiang Cheng would totally go for something like that. Probably there are other sections done up in someone else's colors. And he didn't know about this because he was at music camp, or else because Jiang Cheng thought that if he knew he'd try to sneak into looking at the plans and bother the architects, which to be fair he probably would have. And now it's - the pre-grand-opening, so they're having a fancy dom party, and Jiang Cheng gets to use the nice rooms.
There, see, very sense-making.
He's busy enough looking at the profusion of historical lotuses that he doesn't see Jiang Cheng getting out some power thing until the power is flying around and he's entirely missed what it was. Hopefully it wasn't important.
He isn't sure if he should kneel. Decides not to for now. Stands in front of the table and does look down at the floor and not at the like 500 cool woodcarvings. (Is Jiang Cheng going to let him have just a little chance to look around once he's done yelling at him, probably not.)