He has to memorize the questions and his answers and be coached on how to appear as if he gives a damn.
It'll be hilarious if, in sitcom-like fashion, he mixes up those memorized answers! To wit:
Fake Citizen #1: Mr. President, why were you hesitant to reply on Libya?
Putzident: Mitt Romney wants to give millionaires a $5 billion tax cut!
Fake Citizen #2: Mr. President, how does Obamacare affect my small business?
Putzident: The information we had from the State Department assured us that a video was responsible for the tragedy!