I was watching the Marvel Infinity War premiere that happened last night, and Josh Brolin is asked a simple question and starts to answer it then trails off into other answers and la la land. But it is funny to me now because after reading your comment, maybe it is really first time feeling like a celebrity and is nervous lol, if you have 48 seconds, judge for yourself..

I watched a lot of the videos though, it seems like a lot of people consistently were answering questions they weren't really asked, as though they are all nervous/confused and just need to fill the dead air.