After you meet a girl, text them immediately, or soon after with this:
"Hey [Hot Babe's name here], this is [hot guy's name here]- and this is my number. Save it, because it's the most important one you will ever get. "
The smiley face at the end shows humor and lightens the statement. See, without the smiley face, saying that last sentence sounds douchy. BUT with the smiley, the girl will reply and be like "Haha I definitely won't lose it."
The reason you don't want to wait too long to text this is because she'll forget you. Out of sight, out of mind.
What do you guys think?? PM me and we'll discuss methods and share advice.