One of the most glaring things missing from the content available on the blog here has been an authoritative article on how to get a phone number from a girl.
Never ask a girl their number without creating a positive connection and never be in a hurry because your haste will only make them feel uncomfortable and they might think what a douche bag you are so never force a girl for their number.
When you get within speaking distance, make a casual remark. Nothing stupid, nothing funny, just something ordinary. Now, you want to get her talking about what she likes to do, so that you can offer to join her.
Be sure and SMILE! A smile sends a positive and important message. A smile says, “I will not reject you. I like you.” A smile combined with prolonged eye contact says, “I like you a lot. I want to know you. Let’s talk.”
The next thing you want to say or do is COMPLIMENT HER. Call attention to some detail about her, and flatter her in a totally positive way.
See if you can get her Facebook or her email, so you have a couple different options for conversation. Learning what to say to get her phone number is about realizing that her phone number is not your ultimate goal.