When given the opportunity to answer first, Obama needs to focus on facts from his own record that address the question. On jobs, health care, the environment, foreign policy, he has successes to point too and shouldn't be shy about it. During his rebuttals to Romney's answers, he has to be relentless on pointing out how Romney once held the complete opposite position to whatever he just said. Again, he can't be shy about this. It's all about Obama being confident and assertive in his answers. If he can do that, he has plenty of material to handle criticisms from the audience as well as hammer Romney.