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Created October 15, 2010 by
CNN Heroes celebrates everyday people changing the world. While their feats are amazing, there are lots of tiny things we can all do to make the world a better place, whether it's holding a door for a stranger, letting someone take your place in line or giving your co-workers some extra quiet time.
This assignment is now closed. Visit the This Just In blog to view all of the "Be A Hero" challenges.
Watch "CNN Heroes: An All-Star Tribute" Thanksgiving night at 8 p.m ET/5 p.m. PT on CNN/U.S. and on CNN International on Thursday, November 25 at 8 p.m. ET and Friday, November 26 at 5 a.m. ET, 1100/2200 Berlin and 0900/1800 Hong Kong.