He came over and said hello. He talked about his grandchildren and his travels. He never brought up the Hillary investigation.
Hey, everything Bill Clinton does is legal and above board. So when he just happens to show up on the tarmac where the private plane of the attorney general - who by the way is investigating his wife for possible felonies involving national security breaches - the fact that he just happened to board the plane and talk to her for more than half an hour shouldn't raise an eyebrow for you at all.