Red notices it (noticing details is what a trainer should be good at), but he takes it to mean that she wasn't expecting it. Which is a good thing, really; Pikachu doesn't need to be showing off his electricity recklessly.

He nods to her observation. "It's his thing." There's a beat, and then, "anyway, so halters and saddles..." He looks over the group of animals once more. "Have you ever seen them out on the Skyway before?"

Whether or not there's any indication on her that she's a fighter, it's just quicker to ask that.