You noticed Kiibo looked out of it. Usually, when a robot is running low on battery, they'll start to become more exhausted and somewhat distant. Think of it as how you act whenever you come home after a bad day at work. The only difference between a bad day and a low battery is the lower the robot's battery gets, the more tired the robot becomes, similar to a human getting sick.

Well, Kiibo was exhibiting the first signs of exhaustion, so naturally you wanted to ask him what was up.