Yeah, your right. My more natural dj friends always got angry at me for not texting chicks and no matter how much people like captain deny it which is fair enough i hate to but as you said it's coming up as a way to pick up chicks and you can't just leave it.
Cola's advice is good, but don't do that all the time especially if it's maybe like a first time texting her. But light and funny is good occasionally you can't do that every time it'll just get old and "whats up, my future ex wife" now don't do that, thats just a tad to weird for most girls. But the second one is good and funny, but obviously don't do that if it your first time texting her.
Captain also made a good point, you can't get emotion across on text so just watch what you say. Which is why you don't say stuff like "my future ex wife" can just come off creepy, but the spongebob boxers who can take that seriously lol??
Or a really good way to start is like mention a personal joke or something. For example i slipped on this hill (drunk) with my girl i know and a few days later i slipped a little bit on it again and just txted her saying. "i just slipped on that hill again haha" which automatically threw us into a text conversation.
Just never ever use texting as a substitute for meting up with her in person. a simple "so when am i gonna see you next" or "what you up to this weekend...ect...ect. Just use it as a base to have some funny, lighthearted conversation and then to met up sometime.
oh well, i typed a lot more then i was meant to lol. hope i helped!
Btw cola thats brilliant advice "Not being like every other guy is really 80% of this game" that just amazingly true.