I agree with gingerdactyl...Once you get to the text game your goal is to get a phone call and then the face to face meeting!
Keep your messages short, I reply fast at first and try to have very quick witty/fun text exchanges. Then once she is digigng the excitement/fun of texting you stop it almost immediately (false time constraint). She will be missing you and thinking about you making her smile and laugh (this is where she starts building feelings for you).
I will drop a random text a few hours later "Hey punk...Stop thinking about me like that!
80%+ of the time they will "OMG how did you know I was thinking about you"?
I usually don't respond right away...When I do, I don't answer the question...If she wants to know she will ask again! Your goal is to build excitement, release the excitement, build excitment, release it again...keep rolling with it! Once done right you will have her begging to meet you and telling you that you are making her wet all day long!
Peace...