[John kept his distance while Karkat went for the food. He watched, but he didn't go closer, and after a moment he went ahead and started to talk.]

Well, I was mostly wondering why some of those zombies have weird powers. Some of them can move stuff with their minds, but others can't. Why is that?

[He thought it was a troll thing, rather than a zombie thing, which was why he was asking in the first place.]