I got into shape because I took kick-boxing lessons every day to prepare for a fight scene with Taylor Lautner. I really wanted to lie down and eat Chinese food, but I kick-boxed every morning and ran. If someone was filming you with your kit off, you'd do the same thing.
Often I used my gut instinct to ask the questions and get the answers I thought the audience wanted to hear. Sometimes the interviewees said things that surprised even them.