That's... an explanation. Wen Ning now has an idea of what it does with no idea how to actually do any of it. He steps toward the device the boy has pointed out with some caution. It doesn't seem threatening, although it looks as strange as the rest of this train.

"How... how do I make it work?" There are no machines like this anywhere in his world. He's not even familiar with the concept of buttons and switches to turn something on or off.