This is a very close paraphrase of a quotation attributed to Carl Buehner in a book published many years earlier - “They may forget what you said — but they will never forget how you made them feel.” quoted in Richard Evans' Quote Book, 1971, Publisher's Press, ASIN: B000TV5WBW, although it is widely (mis)attributed to Angelou in her book Worth Repeating: More Than 5,000 Classic and Contemporary Quotes (2003) by Bob Kelly, p. 263,
Misattributed
Variant: People will forget what you said. People will forget what you did. But people will never forget how you made them feel.
“Be the person people remember because you made them feel special.”
2008
Related quotes
“Remember, you are special because I made you. And I don't make mistakes.”
Inquirer.net http://showbizandstyle.inquirer.net/entertainment/entertainment/view/20081120-173424/Miley-Cyrus-lends-voice-to-animated-film (November 20, 2008)
“Whenever you interview fat people, you feel bad, because you know you're not going to hire them.”
As quoted in "Nobel Winner's Theories Raise Uproar in Berkeley", by Tom Abate, San Francisco Chronicle (13 November 2000) http://www.sfgate.com/science/article/Nobel-Winner-s-Theories-Raise-Uproar-in-Berkeley-3236584.php
“People should never think that you have to be a very special person to help those who need you.”