The constume is great because you were getting many compliments. It is when they compliment you that you respond. If they walk away before this tell them "come here" in a commanding voice. Tell them to "give Hugh a kiss" and point to the cheek or something. Role play a bit. Do not be self conscious, relax, smile and laugh, have a good time. Just joke around... eventually you just want to say what comes naturally - nothing contrived. Be genuine. Using canned material that is not true as it relates to your life can sabotage this. Being genuine is very important! And especially confident. At the end of the night or next day reflect on what you did right or not so next time you will be better. Just reflecting and being aware of it sends that data to the deep parts of your mind which will better program it to respond natually with good shit. Keeping a blog or diary is a good way to better reflect on the transactions the night before.
As for the transactions last night, being quicker to reply with an expressive face would help. Actually, having an expressive face, whether smiling, frowning, giving the I "am gonna fuck you like a little bad school girl" face, etc is something I see many of the new guys do not do. An expressive face is an interesting face. I've had girls tell me they like how expressive my face can be. Read the end part of
viewtopic.php?f=3&t=157 H a v e . a n . e x p r e s s i v e . f a c e . ! .
It shows character. It shows that you are comfortable and more confident in expressing yourself. Even a smile can be express in so many way. It can be a happy smile, a devilish smile, a fake smile, etc. Having a more expressive face when you interact will greatly help your game.
Hope this helps,
Mojo