This is a tactic for when your target starts to open up to you. This is something that I've used many times before and it really works. I wasn't doing this intentionally at first, but then I realized what was happening. It's a really cool thing that happens when you combine mutual pain with Casanova strategy.
This works when a target talks about a bad experience in their life. You can use any bad experience, but you need to have gone through a similar situation yourself. Let them tell you about what was wrong and what happened to resolve it and study the details and the emotional tone of everything that happened. Tell her about your similar experience, mostly mentioning similarities and try to copy the emotional tone she used. The trick here is to make her think that you've gone through something she has as well. Mutual hardship is often a large basis for instant relationships with women (womens support groups at churches, feminism, hell... even MADD), much like mutual accomplishment is for men (marines, eagle scouts, football dads, etc.). Mutual hardship is sometimes important to men and mutual accomplishment to women, but its rarer and usually requires a very emotional situation.
Now we look at Casanova (for those of you who don't know, he was the 18th century's equivalent of Mystery). His method was to find whatever a woman was missing in her life. If her life was too easy, he made life hard. If life was too boring, he gave them adventure. If life was too cruel, he gave them love and support. His tactics were very successful. I was thinking about this and how it was completely opposite of the mutual hardship theory and I figured out how to combine them.
When women share an experience with you, there are positives and negatives. She feels closer to you by sharing this pain, but you have no chance to DHV. Tell the same story, but change the ending. However the story ends, tell the opposite as long as it shows value. If you went through the same thing, but made better choices in the end it shows higher worth on your part than the target and you don't look like you're bragging as you're just trying to offer support for someone that went through what you did. Also try to make sure that your tone says that you don't claim to know all of the answers, because it makes her feel like you're judging her and that doesn't mix well with past pain. Your words will show your value. That takes care of your closeness and your Casanova. It works really well when working a set and using it on someone other than your target (especially the target's boyfriend if you are the type to steal a girl).
It's rarely going to come up without a little conversation manipulation, but if it does it will near guarantee success. It's never failed for me and it's my most common tactic.