She is sitting in the library, studying. It's her most common pastime, by hours; spending time with her sister is more enjoyable but Jaromira prefers to socialize more broadly and Katarzyna would only get in the way. This is better on net; the two of them share a room, so it isn't as though her sister's time is entirely hogged by the other girls who call this boarding school "home." Or at least "prison." Katarzyna doesn't mind it, though; the school library is excellent, and basic manners and care for the books has endeared her to the librarian to a sufficient degree to lubricate the interlibrary loans process when there's something she wants to read that they don't have.
"Isn't that just kind of how having beliefs at all works?"
"Perhaps 'preferences' would have been a more appropriate term, there."
"Maybe. I think my preferences more substantive than preferring to have baklava for dessert are correct, though..."
"But not necessarily applicable to the whole of society. Some people learn in different ways, for example."
"I prefer people learn in effective ways!"
Giggle. "Well, as long as your preferences remain on the relevant meta-level, it's probably less likely that typical-minding will become a problem."
"I hope all my preferences are on the right meta level."
"You are much too thoughtfully introspective to casually fall down the hole that this particular mistake lies waiting at the bottom of."
"I am merely observing empirical reality."
"And I'd be disappointed if you didn't do that! So thank you."
"You're very welcome. I am an immaculately discerning judge of what empirical reality to report."
"I empirically report that alas the baklava is gone."
"Hmmm." She swipes a finger across the baklava dish and sucks the honey off. "You appear to be correct. Thus our ability to report empirical reality even when it disaligns with our preferences is confirmed."
"I don't think I actually have room for more anyway."
"Hmm. Perhaps testing of that particular skill shall wait for another day, then. I'm in no hurry; it's much more convenient when empirical reality lines up with my preferences."
"I've noticed something like that but about mine, what a coincidence."
"Conveniently your preferences are eminently compatible with everyone's well-being."
That calls for smooches, a preference that is probably compatible with Katarzyna's well-being.
It is eminently compatible with Katarzyna's well-being, not to mention her being blissfully happy and making soft noises to that effect.