It has the advantage of being pretty much true, but true and plausible are not always the same thing.
"You are known to care almost zilch about school," Bella says. "I think it'll do. She might not even solicit an explanation."
About twenty minutes after school ends, Angela rings the doorbell. "Bella? Bella, it's me!"
"Hang on!" Bella calls out the window. And to Alice, "Go let her in, would you?"
"'Kay," he says, and wonders idly if she shouldn't pentagon herself some acting skills just to make it easier, and goes to open the door.
Angela's standing on the doorstep with her arms full of handouts and hand-copied descriptions of the day's assignments. "Oh! Hi, Delaney," she says politely. "You're visiting Bella too, that's sweet. Can I come in?"
Angela tiptoes in. "Oh wow, Bella," she says, eyes wide at the imaginary casts. "Are you even going to be able to do the homework?"
"I bet the pinball wizard here'll take dictation for me if I ask him," Bella says, making a small gesture with her mostly-"unscathed" left hand. "Thanks so much for bringing everything."
Alice sits himself down on the floor in front of Bella and leans back against the couch. He doesn't consider it much beforehand; it's just, for him, the obvious place to sit.
Bella reaches carefully, with very convincing winces, for the card, and smiles. "Thanks, this was really nice of you."
"Oh, Jessica went in half on the card," Angela says. "But she couldn't come with me here because she has her voice lesson after school Mondays."
"Well, tell her I said thanks, too," Bella says.
"All your friends are cute," Alice says to Bella, tipping his head back and grinning.
"I don't wanna keep you," Bella tells Angela. "It means a lot to me that you came out here, though."
Angela takes that as a dismissal, and gracefully. "Okay. I'll be back tomorrow, Bella. Feel better!"
And she lets herself out.
"...Did I say something wrong?" he wonders. Wrong in the sense of confusing to Angela, that is.
"Well, for one thing, as long as I'm reading you, you don't have to say anything aloud you don't want the entire room to hear," Bella says. "And, 'all my friends are cute'? Even in context, yeah, that gets read funny. Angela seems to give everyone the benefit of the doubt all the time, so nothing's going to come of it, but that could have been anything from a bizarre comment on her and Jessica's appearances to a condescending remark about the card."
The takeaway from this seems to be: don't talk in front of Bella's friends. Well, whatever. He does not have strong feelings one way or another about that, so he may as well not.
"It would probably be weird if you were around them for long and didn't talk at all," Bella says. Angela can be heard getting in her car and driving away, which is Bella's cue to get rid of the illusory casts. "But if you don't actually care either way, it might be simplest not do it a whole lot. I'm running a lot of social algorithms that would be complicated to document and explain and translate so they'd work for you instead of me."
Predictably, there are no good associations in his head for following rules.
She collects the lair notebook and relocates to the kitchen table.
"So this is the basic shape of the thing. Color scheme? Flooring? Lighting?"
He has a vague notion that bright colours might be fun, and another vague notion that he might get sick of them after a while, or at least sick of the same ones in the same places all the time. Lighting he just hasn't considered in enough depth to have any opinions at all.
This is fun. She's humming.
"You forget," Alice says cheerfully, "I get off on scrubbing things. But eh, I can clean my bathtub once in a while for kicks."
Bella nods. "Okay. Hm." She looks around the room for more inspiration. And adds a little arrow pointing at the word "carpet" indicating that there will need to be a nice padding layer between the carpet and the rock underneath, to make it comfy to walk on. (She does plan to visit this place, after all.) "I think this is probably it, except for your furniture that doesn't need magic electricity and water. Where do you want to put the entrance? We can check out the composition of the underground under your first choice first."
"Somewhere near here," he says. "Like, off in the woods somewhere or something, towards the school?"
"There's a big rock roughly thataway," Bella says, gesturing. "Big enough to walk into and not immediately fall down the stairs. By accident."
"Sounds good!" he says. "I don't want you falling down any holes on my account."