As with the sedan, the front and rear of the Civic Coupe see the most change, though it'll take a trained eye to spot the differences out back. The front grille, though, looks more aggressive and sports a new honeycomb pattern, and the lower bumper has been redesigned with new air intakes.
Source with more pic's;
http://www.autoblog.com/2008/08/29/2009-honda-civic-coupe-revealed-in-brochure/