Date number one is about getting the chemistry cooking. Date number two is when women start the real assessment of a man a PMM (Potential Marriage Material). In addition to just enjoying yourself and genuinely beginning to get to know your date, your secondary objective needs to be to create anticipation for a second date.
Here's the first tactic to use: Prepare three 1/2 stories...stories about the beginning part of a big vacation, or a story about a big deal going on at work, or maybe a story about the best concerts you've ever attended. "Halfway" through each story (which hopefully came up naturally during the evening) break and say "enough about me, I want to talk about you, I can finish the story on our next date". Every time you utter that "forward looking phrase" you are signaling that you interested in a second date, and that there will be something interesting as part of that evening. Solid gold.