When you're talking about your job, a hobby, an interest, etc... pick a factoid - like one of the things you'd find on the underside of a Snapple bottle cap - about that activity, and teach it.
For example, I like to race cars. There are a million little things I can teach about it, but one of the facts which is easiest to relate is about tires. My conversation might go something like this:
"So this is kind of interesting... racing tires rarely squeal, so you don't know when you're about to spin if you're pushing them hard. Have you ever been driving and had your tires squeal (wait for answer - if you're flirting, you can say something like "of course you have, you're a woman, and ALL women are bad drivers." this should obviously be used with discretion and based on how well you're getting along with her). Of course - so there's an interesting reason for that. Rubber doesn't ALWAYS squeal - its just that commercial tires are engineered that way so that drivers know when they're getting themselves into trouble. They build the squeal into the tires..."
From there, you could jump back into talking about the hobby, about her experiences driving, etc. And most importantly, get her to teach you something about her life. People love to be experts.
You can do this about anything. When I had my software company, I used to teach people about how encryption worked. I have a friend who does this regarding his zoology major. If you feel so compelled, use the comments here to leave a teachable fact about your life - I'll get back to you and give you my thoughts if you ask for them, and I'm sure the other readers would love to learn from you.
