Getting the voice right

I know I talk about first lines a lot in my blogs but they are so important.
One of the best ways to start a story is to instantly introduce the reader to a character who addresses us directly in a voice that is distinctive and compelling. What do I mean? Try this: “If you really want to hear about it, the first thing you’ll probably want to know is where I was born, and what my lousy childhood was like, and how my parents were occupied and all before they had me, and all that David Copperfield kind of crap, but I don’t feel like going into it, if you want to know the truth.” — J. D. Salinger, The Catcher in the Rye
The voice is distinctive, you are challenged and want to learn more about this person.

John Dean