I enjoy witty banter with anyone who wants to go there with me. I don't necessarily have to really like the person, or even feel "extremely" comfortable with them. I like to throw things out there as soon as I meet someone, to see where they can go with humor. I agree that it's my favorite part of dating too; the rush and buzz from it is very stimulating and exciting. I like to keep things at this level for as long as possible.

Historically, I have used extreme sarcasm and teasing when interested in someone. It used to go, the more I liked that person, the more of an asshole I was. The kindergarten approach. ;) If they couldn't handle it and give it back then yes, they would be deemed no fun. I have learned to not be cruel about it (I have been severely ego-bruised by another INTJ who adopted this approach). The best partners to play with are ESTPs and ISTPs, and I love to flirt with these types.

Physical contact is absolutely not a sure way to know if I really like you. I can be physical very easily, and it can also mean very little to me. I don't agree that all INTJs "never" really let people touch us. I am not uncomfortable with that at all, and I know other INTJs who don't mind it either. I recently made a new friend by launching a big hug attack when he said he was not having a good day. (He works in a store and gave me my item half price because I hugged him and wished him well!)

I agree the 'ultimate prize' I could give someone is my ideas and my thoughts. To know what I really think about when I lay my head down on the pillow at night, and when I am staring off into the distance all quiet. To know what my real opinions are, my hopes, fears, and aspirations, or about all things greater than myself - that's the gold.