Text messages are GREAT to communicate with girls.
You don't feel like calling her but still wants to show that you're interested? Send her a text message when you KNOW that she's doing nothing else, and probably are a little bit bored.
Like, when she's in school or work.
Monday, 3.00 PM, the babe is in school or at work, and you write her a text message. Be funny, and make her smile. It's not that hard. You can even mention in the text message that you're writing her since you know she's bored and sitting in school / at work.
Text messages are also perfect if you don't want to call some girl you cold approached. Send her a text message 4-5 days later, and write something simple. If she responds, you'll know that she's interested. I've texted around 5 girls i got numbers from at parties, and all of them wrote back.
If she doesn't, well, you can call her 2 days later and give her a last chance.
I'll tell you something i tried yesterday, which also worked out pretty well:
I were sitting on a buss on the way home, when four girls enters the buss. Two HB5's, one HB6, and another HB6.5 -7. When they walked towards me and my friends I gave all of them a smile while making eye contact. My friend did the same thing, and when they were at our sits he said "Hey, here's fine!", with a smile. After 2 minutes they all came to sit next to us, and I had eye contact with the HB6.5-7. We chatted with the girls, and i made fun of the 6.5-7's name, since she used a short-name due to the fact that she didn't like the real name she had.
We spoke for 5 minutes, about partying and I made some jokes about them coming to our town to party. Of course, this was a plan i had to get the HB6.5-7's number.
I told the hottest girl I'd give her a call some time , and when the buss stopped and they were leaving i said "So, give me your number and i might invite you to party some time".
They all looked at me, and i said "And hey, no fake numbers. C'mon!" She gave her number, and they left.
Now, one minute after that i sent her a text message. Yeah, wait 4 days you say, whatever. You wanna know what i wrote? Yeah, i'll get to the point:
"Hey 'Cecilia' (The name she told me 5 times she never wanted to hear, since she hated it)! I dunno if you remember me, but we met on the buss!

haha. (sent one minute after you left)."
This way i made fun of the situation, with her name, she got my number, and she also, two hours later, texted back.
The reason that i wrote "(Sent one minut after you left)" were that there sometimes are delays when sending text messages, and ... imagine if she got the text message the following night, or even in the morning. It wouldn't be that funny, if you know what i mean.
Just had to share.
Edit: Some spelling.
