IME there are two types of girls along this gein.
1. The type of girl that can, if they want, flirt with anyone.
2. The type of girl that happens to have compatible communication with a specific individual or type of individual where the interaction can be considered flirtatious.

IMO the first aren't all that difficult to find, but the flirting is actually a means of retarding meaningful communication in developing a meaningful relationship, more of a defense mechanism.

The second is serendipitous and should be pursued.

"Flirting" IMO isn't really a positive "skill" you can pick up.

If you are looking for a girl that "know how to flirt" what you're ultimately going to find is a woman that is testing you and/or playing with you for her own entertainment.

By the Looks of your Post, You have No Clue Yourself...