Awesome man, glad your seeing results!
I usually like to text first, it seems to be the new thing. Some people say the it DLV's you, but i've never had any problems with texting. Make sure you have good grammer when you text.. For ex. instead of "U" write "you" see what i'm getting at? and be fun, don't be boring. Remind her why she gave you her number. A good opener would be something like.
You:Hey knuckle head

So what kind of trouble have you been getting yourself in to today??
or
You:(Send blank text)
Her: Hey, you try to send me something(or something like that)
You:Hey there! you don't have to make any excuse to text me you know!
The list goes on a fun texts you can send, but it's important to keep up your fun personality durning the whole text game. Since your not there in person to show off your confident body language, you must do it through the phone with a cocky funny attitude.
Don't ask her on a date, don't say your free or anything.. If you want to see her again you can say something like.
You: Well anyways, me and some friends and going to (where ever) this weekend. You some definitely try to make it out there!
If she says she busy and can't make, DON'T WORRY! She probably is but this is still a shit test. Say something like
You:Oh thats too bad, I kinda just invited you on impulse so it doesn't surprise me that you already have plans.
You can talk for a little bit more, but end the conversation on your terms! Then it's time to play the waiting game...
I know I know... The waiting game is horrible, but guess what... If she does like you and wants to see you she'll text you eventually, if she doesn't then oh well, don't waste your time on her... NEXT!!!!
There's no such thing as failure in the game, just learning points and experience.
Anyways. hope this helped and let me know how it works out for you!!!
