Since you are shy instant openness will help break the ice and you will find that conversation flows so much better with this products.
Instant sexiness/b will more suite your personality but I get the feeling you want to be more confident and flirtatious so instant sexiness/a will work better but we are out of stock right now.
Here are two threads that will assist you and I want you to pop into the female section for more advice and to tell us about your experiences when you purchase your products.