I think it's an organic process. I don't plot. I don't plan. I start writing and characters and geography emerges. I find that in telling stories, the best laid plans go poof when your characters do what they want to do because you don't control them-they become real and live their own lives. I certainly am influenced by the people I meet and the places I go to when I create my characters but it's an intuitive thing, I just know who this person is or that person is and I know their name and I just know. And what I don't know, he or she tells me.