Bill O'Reilly is also a bully. He is also rude. He won't let his interviewee get a word in edgewise. He also insults atheists with his implied understanding of what this interview was about, but the sub-text is that the other guy, and most atheists are morons, and the meaning behind this atheist effort is stupid.
He also throws his hands around in the air and says, "Whoaa", when someone says that they don't know something. He implies that people with whom he disagrees must have all of the answers. I prefer to know that I don't not have all of the answers, rather than accept some b*llsh*t answer.