Larisa is slightly glaring at Teresa because she can TELL this is stressful for Vanya. 

"Thanks, see you then. And, I, ah, apologize for disturbing you all, Sacramento." Especially Mr. Lump.

She gets an expressionless nod from Landon. 

And a final parting glare from Larisa, who does NOT LIKE MALEFICERS even if they're supposedly doing it ""responsibly"" or something. 

And things got sad again, "What about you Lucy, did you have any interesting classes? Also do you happen to know Russian I remember you saying you knew a lot of languages."

"I don't happen to know Russian, sorry. I know a lot of languages but most of 'em are clustered, Dad's a linguist so I know a lot of Doggerland stuff and a lot of India stuff and a bunch of China stuff, plus some oddballs, it's not that I speak the N most popular languages."

Pause.

"Sorry, I didn't think she would approach me while I was sitting with another, non-Pisa enclave."

"Vanya and I know Russian." 

"Oh, would either of you be willing to trade something for Russian tutoring if I get stuck? I should have a supply of antibiotics and pain killers starting in a week or so and I can also probably help with math homework."

"- Yeah, quite possibly. You can come ask if and when it comes up and we'll figure out an appropriate trade?" 

"Oh good, I appreciate that. I have a dictionary with me but dictionaries don't cover everything."

Apparently they're just going to pretend Pisa didn't happen? She can work with that.

"Dictionaries really don't cover everything," she agrees. "Grammar alone is a big deal."

"Yeah, hopefully I'll get a textbook in my language lab for the grammar."

Pretending none of that happened, yeah, sure seems like the way to go. 

Larisa finishes the rest of her supper fairly promptly, and then stands up to leave. 

Hesitates. 

"Vanya, please eat more of your food, you haven't eaten anything else today. ...Ribo, would you mind reminding him?" 

"I'll try, I'm not sure how successful I'll be."

"Yeah, I get it." And Larisa leaves. 

....If the random freshman has to nag him, that's just going to be embarrassing for both of them. Vanya eats his food. 

Oh good she doesn't have to nag. That seems like it would be awkward. She eats her own food. She doesn't want to ignore Vanya but she also doesn't want to do anything that will stop him from eating.