You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Six Things You Didn't Know About R/GA's Bob Greenberg Cannes Edition: Cyber Jury Prez On How He Stays Limber, His Famous Doppelganger And More By Ann-Christine Diaz, Published on June 13, 2013 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.