Of course Lightning knew the look of a new person. She hadn't been around all that long, but she knew the look of someone who had absolutely no idea where they were, what to do, and were feeling very much out of their depth. Shock tended to be one of the first reactions to being very suddenly dumped in a new place-- she knew that emotion well.

As she approached, she noticed the weapon-- a sword? They were bringing in a lot of knights, soldiers, and just plain warrior types. Herself, her sister, Steve, the people she'd sparred with. What are they doing, building an army?

"You're new, aren't you." Not even a question-- she was just looking for confirmation that she was right.