[She doesn't have to follow his glance to know what (who) he's keeping an eye on. It would just be more suspicious if she looked, too.]

My off weapon is a short, retractable blade. There was enough of the right material on Aimintas, so I made one there. I… picked up the know-how when I was younger.

[Translation: she learned how to craft and care for the weapon by Artorius, but she's not about to name drop him. She has a blade hidden in the toe of her boot, too, but she also doesn't bring that up.]

… I won't use steel when we spar. Getting a practice blade shouldn't be hard, and training hand-to-hand isn't a bad option, either.