Flirting 101
A common mistake a neophytes do all the time is that they try to combine approaching women with flirting and teasing before they are ready to do so.
When you're playing basketball, you learn to dribble and you learn to shoot. Both are important skills to have and do work together eventually, but at the beginning, they need to be practiced separately until you are ready to do them simultaneously.
Dating is no different. If you worry about approaching women when you should be practicing your flirting, it's going to kill your success. And if you worry about how you should be flirting with a woman before you approach her, it's going to lower your confidence and make yourself stumble.
That's why you should practice approaching women and flirting with them separately until they both become second nature to you.
Start by flirt with every woman you come across casually. Just let go of your expectations and be playful. Forget about the results and just do it. Flirt with all the females within your social circle. (If you don't have one, it's time to get one!)
Once you can do that, then start approaching strangers (not just women, but men as well) and small-talk them. Focus on meeting people and developing your natural curiosity towards things and people in general.
GoodLuck!