People my wife knows met them at the airport and said hello to them that day.
I would not go out of my way to meet them because I leave celebrities alone . However if I sat next to them I would be nice to hillary because I would not want to stroke her out with a mean question.
But, if bill were talkative I would have asked him how Perot would have done had he been President. ( I voted for Perot and always wondered how he would have done because he was right about so many things like the giant sucking sound and American jobs)