How do I get a girls number If I don't know her?

Steps To Getting Her Number:

Step 1) Act Cool, Walk Up Too Her.

Step 2) Talk In A Regular Voice Tone, And Ask How's She's Been Doing Or What Her Name Is Or Just Whatever U Don't Know About Her.

Step 3) "IF" She Stays And Engages Conversation And Smiles Then Ur Good..

Step 4) After Ur Small Talk Is Done, Say "Hey iGotta Go ill Catch Up With You Later, Can iHave Ur Number?"

If She Walks Away Without A Response Before Or After U Ask For Her Number, There's No Way In Hell Ur Gettin It.

Getting information can be done in two ways: asking her yourself and asking someone who has the information.

My best advice i would give to you is asking her for it. You're engaging in a conversation (which is very important for friendship and relationships). You also don't see like a creeper/stalker but just texting her. Wouldn't it be just creepy if someone you don't know just text you?

Pretend you lost your phone and ask to use hers to call it. Then you have those digits haha Im ashamed but I've done this before. Or just ask her for it she won't say no if she's shy

ask her. i'm sure if she's interested and nice she'll give it to you.