Willie Mays talks to a young, enthralled fan. “Willie was the complete ballplayer,” Hank Aaron once told LIFE.com. “He was everything that everyone else wanted to be. He was exciting. He did things that fans loved seeing. You looked at him and you said, ‘I wanna be like him. I wanna be better than him.’ You just felt like he played the game the way it was supposed to be played.” See more in the gallery, Willie Mays: Say Hey!