Xehanort for his part, having not been looking for interesting little bits of blinking technology, has NOT spotted what's going on with Gladio suddenly wanting to throw Sephiroth at the ceiling like a pretty silver comet. This in no way means he isn't suddenly interested in seeing this happen, however, which means his progress towards leaving the room ends completely in favor of turning and seeing if he can spot what Gladio's after.

The question from Sephiroth, perfectly reasonable in its doubt about being tossed around, makes him raise one tanned finger and point. "Something up there is blinking." He can't tell what, his vision is painfully ordinary. "If you're technologically inclined, perhaps you might be able to tell what it is."

He's not volunteering. "It seems our friend is willing to help you .. or ah someone else, get up there to investigate."

'Friend' is being used very very loosely here, by the tone of voice. While his expression is utterly sober, there's just this bare edge of amusement to his words.