dude youre money on this. From the point that you get their phone number or whatever the rest is all downhill.... Just wait a couple days from when you get their number and then call them. Play the cocky funny routine on the phone for a few minutes (you should have no problem with this since you said youre naturally flirty) and then set a date with them. Make sure that YOURE in control of this, so you wanna say something like
You: We should go out for dinner and a flick friday night, that is if you can wait that long to see me again
The main thing is just make sure youre in control from this point on. You pick the movie, you pick the restaurant, etc etc.... dont ask her if shes ok with any of the choices you make, if she has any objections believe me she will let you know. The point is women like a man thats in control and taking charge, youve got the first part down no problem dude and believe me, its by far the hardest part.