High T girls are more competitive, take more risks, pursue power, compartmentalize their emotions, are more sexually aggressive, and have different tastes in men.
They also may tend to be tomboys, something which, like the other traits mentioned above, likely goes back to prenatal testosterone exposure.
In many cases the more masculine features are there, but subtle. The biggest differences, however, seem to come in how high testosterone women think and act.
They process their thoughts like men and act more like men.
But, you probably are dealing with a girl who, especially at times, thinks and acts a lot more like a man than most other women on the planet.