I agree with this. Not sure why she is interested, but she definitely is on some level. Probably picked up something from you that intrigued her.If she is giving you "extra" attention, she is interested in you for some reason. Whether it is romantic or not I don't know.
Absolutely. I'm always looking for connections, so sometimes I know I like to test the person to see how much they can handle.If they can keep up with some intuitive verbal sparring or my sense of humor, then they get extra of that thrown at them.