I guess Richard Nixon. I shook his hand at a state fair.
I've met several celebrities, ranging from Presidents to Playmates. They seemed friendly and pretty human,in the main.
The warmest were Playmate Angela Little (before her centerfold appearance; we were just talking in a book store) and the actress who played Jeannie on, "I Dream of Jeanie." (Barbara Eden.)
The one with whom I talked longest (on two occasions) was Playmate Amanda Hope. (I know her last name, but she doesn't want it in print, as her stepfather is/was a lay preacher or something, and it would embarrass the family.)
She told me a lot about what goes on at Playboy behind the scenes and about some other Playmates about whom I was curious. She was kind to them, not at all catty. And she confirmed my feeling that Tiffany Sloan is especially sweet and kind. In fact, she roomed with Tiffany while they played in Playboy's Girls of Rock and Roll. (Amanda plays clarinet. Some of you guys may recall her playing clarinet in an Army band. It was in her centerfold feature.)
She was so patient and helpful that I bought her groceries the first time I met her, in, obviously, the grocery store. I was just talking to her as an attractive chick, when she mentioned playing a clarinet, and it clicked why she looked familiar.
Richard Nixon was more stressed and reserved, and not nearly as pretty. But I was just a young kid then, and I guess he knew that I couldn't vote...

I think he was also uneasy in crowds or in having to deal with voters. He came across as an imperial introvert. I was pretty young, but that thought has remained with me over the years, and I think it was an accurate impression.
T-Star