Hello im a newbee and recently i met this wonderful chick though she has a boyfriend that she loves, but she does also spend sometime with me. What can i do to win her over

Sure, everyone will be happy to put in the effort to walk you through seduction, start to finish, when you didn't even put in the effort to write a proper question.

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I know my place. It's me on top of the world.

My in depth texting & dating guide.
There's no such thing as shit-tests.
How to keep a girl.

So this girl is your only option?

Does she know that you know she has a boyfriend?

The short answer. Flirt with her.

Relentlessly.....

Even if she knows you know, let her know that he’s no threat to you. Even ask her how he's doing.

DON'T slam, down grade, or talk shit about him. Just disregard the fact.

Never stop your flirting when isolated with her, It’s alright to ease up once in a while, but you have got to let her know that you want that ass. Never if he's there. Don't be a douche.

If she reacts to your flirting advances in a like fashion, keep going.

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They call me the cat whisperer, cause I know exactly what the pussy needs.

If you want to have sex with this girl,don't do anything,if you are a man,with an atractive life,then this girl can see that,and,probably you have a change ,but,what a sugest to do is this,try to aproach another girls,man,are so many ,why you stop an this girl?