massive change? what was the hardest thing to get used to? >> they don't play a song when you walk into a room anymore. literally. it's amazing. forbe three or four weeks i was totally lost, i didn't know where i was. >> former president bill clinton on conan and former president barack obama was at a downtown courthouse reporting for jury duty. this was the scene as the 44th president ep terred through a back door, still could be seen by a crowd of people taking photos, in chicago, of course the scene inside, much more controlled, though. >> nan. >> hey, mr. president. >> thank you, thanks, everybody, for setting up the jury.