Ok I'm a little new to this. Now there is something confusing me.

I have recently been successful on attraction and comfort with 2 girls, but they are just about 7s. Another 7 which didn't go so well because I actually decreased my DHV from lack of preparation.

Now the next day I was walking home from a night class and there was this
9nish girl reading a book at a table on the hallway.

Now I approached her over my shoulder and touched her on her arm as I asked her "Excuse me can I ask your opinion on something" so she said "sure". So i faced her then told her Im having this dinner party over at my relatives house as Calabasas trying to build DHV since that place was known to be home of Jessica simpson was and my uncle do have a house there anyways. The thing is she didn't know what that place was and I didn't say that it was a classy place.

Then I felt my throat getting uncomfortable as if I needed to swallow but I didn't want to because its going to show I'm nervous. I asked her "What kind of clothes do you where in a sort of thing as a dinner party." Then she said Kaki pants and something bla bla.

But then while I was talking to her, all she was doing was smiling, and her eyes were wide open, and it made her look hotter and also made me nervous because the other girls were flirting with me at that point and all she was doing was listening and just responding she doesn't initiate conversation, I lost my nerve to continue and said "Well thanks for the help" and walked away.

Can any expert PUAs please help me on this, I can't pin point my mistake on this one.

First, I am certainly not an expert (still new) but you pointed out your own issue. You got nervous because this girl didn't react like the others.

Even if you can use the same basic outline for every PU ...every woman is slightly different and you must adapt and change per this difference.

Her eyes were wide and she was smiling because you had her attention. Instead of backing out you should have started an actual conversation.

Maybe with a "Thats what I was planning on wearing , but when I asked my friend he said that this "Calabasas" place was really ritzy and so I didn't know if maybe I was going to show up a bit underdressed. I mean, I would seriously hate to feel like the Emporer with no clothes."

People thinking about a naked emporer almost always gets them laughing.

Basically, if she gives you a quick answer then try to get her to go more specific or change the question slightly so that she has to talk more completely about the subject. OR use that time to get a more situational statement like check and see what book she is reading. Ask her about it. Mention that the reason you asked is because she looked like she had a great sense of style... cept those shoes. or so on and so forth.

I am sure you get the picture. You already knew what you did wrong. You stopped trying. You hadn't lost yet.

Hope this helps,
EvoJ

whenever ever I get nervous (in everything, not just sarging), I remind myself that its time to slow down. Relax your posture, take a breath, and talk slow. Don't spend all your time thinking of the next perfect canned line. Listen to her and let things happen naturally. Remember that most of communication is non verbal, so it doesn't really matter what you say to them. If she was smiling and watching you she was probably interested. She may may have been giving you IOIs as well. Just keep all this in mind for the next girl you approach.

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"50 below, knee deep in the snow" - Don Magic Juan

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"In all things be a master.
Of what you do, say and think." -Buddha