United Kingdom, May 20 -- Dustin Hoffman has revealed why he always tries to say "yes" to signing autographs.

The 88-year-old Hollywood veteran, who has appeared in the likes of Rain Man, The Graduate, Hook, Finding Neverland and more over the years, has credited his longevity in the film world by simply being "nice" to people, and he keeps up that mantra when he's meeting his fans.

Asked about the secret to a long-lasting career, he told Extra: "Life is easier if you're nice to people. It's just easier."

When it comes to autographs, Hoffman admitted seeing the disappointment on someone's face if he turns them down can ruin his whole day.

He added: "If you say no, there's an expression that you see on their face where you have reduced...