Former United States President Bill Clinton always waved and said hello to Shobha Vanchiswar when he walked through her neighbourhood in Chappaqua, New York, as part of his daily exercise routine.One day in the fall of 2007, Vanchiswar got the nerve to strike up a conversation with him. She had heard Clinton talking on television about his foundation. "He was talking in a way that made sense to me," Vanchiswar said.