When fellow WordPress bloggers see that I’ve been Freshly Pressed, they often ask two questions: Haven’t I seen you here before? and How do you get Freshly Pressed?
The answers, respectively, are Yes, thanks for noticing! and I have no idea. (I’ve had posts that I hoped might get FP’d but didn’t, and I’ve had posts that I never thought would be FP material that evidently were. It can make you a little crazy.)
You can check out WordPress’ tips, and if it helps, below are my posts that have been Freshly Pressed. But my best advice is write well, write often, and have fun!