"Huh, okay... sounds simple enough. I assume you use those monsters to knock off life points?" He's suddenly realizing that having a child explain the rules of some card game from another world to him isn't going to be the most entertaining way he could possibly spend an evening, but, well. It sure beats spending the evening in that empty trailer, or hanging out with the crazy bullshit that's happening outside.

He realizes how rude that's going to sound if she hears that way too late to shove it aside, but he tries anyway.