Levi couldn't help but smile at her outburst, a genuinely amused thing even as he stood inside of the building, letting her play and learn about the doors -- in, a few steps back and then in again. It was -- well. Cute.
And reminded him a little bit of just how young she was, with that look of wonder on her face.
"Electricity," he said, as if that really meant anything to him beyond the fact that he knew it was a thing. "Everything runs on it here. It's fucking weird, but really convenient."