I've been working away at my story outline for this year's NaNo, so that I'll be ready to go come November 1st. A few days ago I found a good 'how-to' series, from Fiction University Get Ready for NaNo! It's a 3 day series, and started October 1st. I've been skipping around as I catch up, but have just worked out what the real 'hook' is for my story. Not the unique first line that grabs the reader, but the hook that sets my book apart from others, that makes the reader want to keep going.
I had thought it was the fact that The Game was more than a career path 20 yr olds, it was also secretly a way to select and train some to fight against an alien invasion. So the hero wants to win at the Game, and then win as a soldier. While having to develop/change his moral code. But that's not different enough. What starts off for him as just being good with hunches develops into dreams of the future and then daytime visions. So his real goal is to understand the range and accuracy of this ability/curse, and earn to manage it to his advantage. That's my hook.