... in that if it makes me laugh or cry, then the chances are it'll make others do the same.

I have never written with the intention of trying to please others, as one can never ever do that. You can please some of the people some of the time, and that's it. I write those things that make me feel good. If others like it, then that's a bonus. And, they seem to.:)

As for a secret, there's no secret, just a hard slog, bashing away. But my muse is brilliant as she can keep on coming up with ideas and the stories write themselves. I think the key is a central character that everyone can identify with. I know I do.
Keep trying and all the best.
Tanya