I've got nothing to lose

Do you realize that when you're so into this ONE girl, it makes you try a little "too hard" to not "screw things up" and that can be BAD.
Even just "asking her out for a dance" Then comes "what should I... "How should I... "When should I (....) to make her happy and like me?"

This is the one-i-got syndrome.
It's when you only like that ONE special girl, you liked her too much to the point where and you simply CANNOT AFFORD to screw it up with her

THAT'S where the game is finished before it even starts with her.
Because the paradox to it is that the MORE you try not to screw it up, the MORE you'll actually end up screwing it anyway.

Even guys would normally "hold back" and "not be their usual selves" when they're with a girl they like fearing that they might say or do something wrong that might offend her and she'll just walk away?

The first thing you have to do is to go in with a "I've got nothing to lose" mindset.

If you were to compare the "success rates" between a guy who is ALREADY attached and something who's still single when their out with a girl, chances are the guy who already has a girlfriend will win... most of the time.

Why? Because whether he gets the girl at the end of the day ornot, he DOESN'T REALLY CARE. That's cos he'll go all out and does whatever he FEELS LIKE DOING to get her as he knows he has NOTHING TO LOSE. Next is for you to go out and HUNT for AT LEAST another 3 girls to mess with.

Advantages:
You'll get more REAL-LIFE practice
Your dating 'skills' will improve EXPONENTIALLY by going after 4 girls simultaneously.
You won't CARE whether you'll be screwing it up with this girl anymore.

Why does it help? With so many other options around you, you won't be looking to impress her, you'll become INDIFFERENT to the outcome when you're with her, and this in turn helps give you MORE BALLS to tease, mess and make fun of her even more which will eventually FUEL her interest in you even further.

How to be different?
1) Pretend that you've known her for YEARS (even if you don't), and that you're TOO comfortable around her.
Tease her, bust on her for something that no one DARES tease her about...

You: Hey where'd you get that bag? It SOO adorable!
Her: Thanks! Bla, bla, blaYou: I've soo gota get one for my mom

Her: Do you think I look fat in this?
You: I didn't want to say anything but...

Her: (mispronounces or fumbles on her words)
You: (turn to her friends) Is she always like this? Her: *Whacks*

2) Pretend that she's interested in YOU, and hasbeen pursuing YOU, and that you're resisting her.
You: (walk right in front of her and look back at her) Oh no you did NOT just check out my ass!)
Her: You're funny.You: Maybe that's why you like me :-)

Most guys will go all out to be nice, cordial, and friendly to her, give her compliments and stuff. You do a complete 180 on her.

There's just so many forms of teasing, busting and messing with women that you can use to bring out the "fun" and "flirty" energy in your interactions with women.

These are the stuff that INFLAMES a woman's inner passions and triggers magnetic emotions of ATTRACTION in her for YOU
You just have to WHEN and HOW to say it in a SYSTEMATIC, REPEATABLE way