She would have noticed the shoulder holster if she had properly looked at him, they aren't that rare around her back home, but right now the situation doesn't seem hostile or even prone to become hostile, and she's really more interested in figuring out how to use those swings than anything else at the moment. So she pays only passing attention to Richter. Well, except for his explanations, those she pays close attention to. Because she wants to learn how to use swings.

And she's certainly not interested in going home to an aunt that doesn't even exist in this city. So she will very firmly ignore that part of what he said.

Instead, she tries out what he did, a bit awkwardly but accurately to his description. It's not really working.

"...Do I need a running start?"