That's fair. [She nods, very seriously.] It's different with what siblings can call you, too. Are you the oldest? [Just like with Porthos, she childishly assumes that since Bucky is so big, he must be the oldest.
Unlike her older self, this Elsa seems to have no problem with physical contact, since she doesn't hesitate in taking his hand in turn. Even smiles up at him a little, grateful he showed her what's the right way to do things, and excited to hear about all these incredible people.]
So many people... The elements, like- water, fire, things like that? [Someone like her? Ahh.] I'll call it whatever she wants, I promise!