For me I have a lot attributes that a girl would admire. I'm tall, smart, athletic and so on. But I can't for the life of me be flirty because I feel like I can say something embarrassing. It's like I hold my self back because I don't want to come as of weird. I've been practicing more going to parties, but I still have trouble of going over that hump for having the right thing to say at the right time. It sucks too with my friends because they do tease me that I should be pulling where ever I go, and I can't find what suites me to pull girls effectively and consistently.

What are some practices or thoughts that I should do to overcome this hump?