Hola amigo, I'm french, so it's a good mix right

I would just suggest that you read this, cause I've read the game too and it doesn't tell everything in detail.
http://www.bestpuatraining.com/negs
And what I think about the neg in a bar with a group of people it can work well, cause the rest of the people are listening to you and so you have the time to change the negativ emotion to a positiv emotion.
But one on one... it's still good... but better if you do it in a funny way... Like a big brother teasing her a bit. If you're too serious, it might not do the effect ou wanted.
Second advice : remember that you think you like her cause she's hot... But it's an image, so when you Mystery gives this magical phrase (wich works like a charm on a set) : "you're beautiful, but beauty is common". Make it a personnal philosophy.
I think it will help you gain confidence to approach such women...
But hey, i'm still learning too, so take what you want from what I'm saying..
If not to get back to her maybe you could take some info from those link and make a mix :
http://theattractiveu.com/day-game-appr ... ion-close/
http://www.youtube.com/watch?v=G0gvW5-8bcY
those guys have great info than can help you go further in you're gaming.
Good luck and tell us how things turn!