Once you have your character sitting right there in your head, all you really need to do is wind them up, put them down, and simply write down what they do, say, or think.
Terry PratchettMind you, the Elizabethans had so many words for the female genitals that it is quite hard to speak a sentence of modern English without inadvertently mentioning at least three of them.
Terry PratchettBelief sloshes around in the firmament like lumps of clay spiralling into a potter's wheel. That's how gods get created, for example. They clearly must be created by their own believers, because a brief resume of the lives of most gods suggests that their origins certainly couldn't be divine. They tend to do exactly the things people would do if only they could, especially when it comes to nymphs, golden showers, and the smiting of your enemies.
Terry Pratchett