Carter
Cutting off their blood flow? Amputation? Kami, it's a good thing she's learning about this, lest she fuck up awfully in battle and end up without an arm. "Oh," She responds, writing in her notes, "Right..."

She looks up at him slightly, wondering why someone would choose to dye a section of their hair such a bright shade of orange. Or, if it's natural, what sort of hair his parents must have. She shakes his hand, firmly and with authority, despite being a child. She doesn't want to seem weak. "Kats," She nods, "Cool. I'm V."

Despite growing up here, the friendly nature of shinobi never stops surprising her. How many has she met since her promotion? More than she can recall, and she's generally good at names. Ayu would be proud of her if she knew.

"You're a medic?"
Jeffrey
"A medic? Hm. . .Well, kinda I guess? I dabble in medicine, but I wouldn't say it's my speciality."
He'd lean over, propping himself with his elbow.
"If you couldn't tell, I'm a member of the Tsuki clan. We're not one of the accords so I understand if you haven't heard of us haha!"
He'd let out a boisterous laugh before continuing.
"So my speciality would probably be. . .Ninjutsu?"
Carter
Tsuki... Doesn't ring a bell. But judging from his specialty being ninjutsu, more than likely they have a kekkai genkai, one of the lesser known ones maybe. "Tsuki," She responds, "Ninjutsu? A combination element?"

It would've been more helpful if he was a medic, but this is interesting too. She can't help but be a little jealous of people in clans. Big families, unique ninjutsu, everyone is willing to teach. She kind of got that same treatment when she was in the orphanage, so she can't really complain.

"Did you..." She asks, "Come here to train, or something? Maybe I can help?" Unlikely, seeing as she thinks he's a jounin, but you never know. Maybe she can hold a target for him or something. A favor for a favor.
James
"Explosion Release to be specific, haha! It's one of the strongest!!!" 
He smiled and tilted his head as she asked the question.
"O'yea sure, definitely! Fresh out the academy, so I could probably use some training. Oh, I know!"
He stood up as he finished talking, offering a hand to help his peer up.
"You up for some strength training V?"
If his grin got any larger *He'd* Probably need a medic.
Carter
Explosion release seems like one of the most destructive kekkei genkai, right up there with lava in her eyes. V's techniques tend to veer towards those that are relatively safe around partners, but Kats's element seems better for solo missions. Or, at least, a lot of space between him and any allies to prevent friendly fire.

He's a genin? That doesn't make a lot of sense, considering he looks a lot older than her and clans tend to put their children in the academy at 9. Maybe he was held back due to problems? Or his parents decided to enroll him later. Either way, he helped her, and strength is kinda her thing. 

V closes the book and grabs his hand to stand up, slightly under 5', "Sure." She says, flashing through hand signs and bringing up an earth barrier beside her, "I used less chakra than normal, so this should be like... D-rank? Maybe?"

She touches it a little, trying to estimate the strength, though it's a loose estimate at best. "Yeah, something like that." She continues, "Try to break it."
James
"O-OH. I-"
Katsuo promptly slapped himself for being deterred, quickly taking a deep breath.
"T-This is a little wild... But I'll give it my best shot! OSU!!!"
With a crooked grin, despite knowing his physical abilities were. . .Incredibly subpar, he'd plant his feet into the ground and slam it into the wall. 
It didn't break. Cracked maybe, but definitely didn't break.
Carter
"You're right, you do suck." She replies, though her tone is full of humor rather than malice, "Keep going. You'll get there eventually. A bunch of weak punches equals one strong one, right?"

She looks at his hands, thinking. "It helps if you do strength training." She says, gesturing, "Pushups and stuff. And, I mean, rely on jutsu that don't use strength as a main aspect, but you probably know that. Unless you plan on training for hours a day."

She reaches forward, correcting his fist, "There. Now you won't break your thumb or whatever."