[Hey, she's essentially a child soldier even if she's nearly adult age at this point, age discrimination is not a thing when it comes to coolness.]

Well...how should I put it?

[It's been a while since she's talked about abilities of any sort, trying to keep up the appearance that she's normal for some peoples' sake.]

Let's say I concentrated my perception on you right now, then I'd be able to see the shape and form of your...soul. Its color, your nature, stuff like that. And even if I closed my eyes and you walked away and hid, I'd still be able to track you by your soul.

[...Is this creepy? Is he going to call her creepy?]

It, um, it doesn't work if something doesn't have a soul, though.