Be smooth

You like the feeling of corrupting a woman's thoughts. It wasn't your first plan, but it's addicting.

"I think you might forgive me for staying to enjoy a bit more conversation together." You're almost being too vague to do anything, but you can feel some strain and you can see her softening up.

"Well, as long as it's light and casual."

"Of course. I think 'light and casual' can sometimes make a person comfortable in ways they don't expect..."

You keep on with this for another twenty minutes, sharing a snack and nudging her to open up to you. You plant seeds of ideas and then water them with further suggestions, and by the end of your lunch she's almost friendly.

You decide to escalate this. "I think you're more likely to talk about yourself when there aren't other people around. I think you should tell me where you go to relax by yourself."

"I take a drive to my friend's place when I need to be alone. She has a small bar in a low-traffic area of the beach. It's not usually empty, but the drive itself is relaxing and peaceful."

"Great!" You accept a bit of pain to get things moving: "I think we should go together."