What happens if a woman takes 'small' dosages of testosterone?

For instance I know Tmen take testosterone shots and their bodies go through many changes like muscle development, different fat distribution, deepening voice, hair. But can can a female take small controlled dosages of testosterone so she just gets little more athletic, slightly higher sex drive, and faster metabolism? I ask because find myself to be super feminine, soft face, large lips, bad at exercising, hour-glassed, high voice, 0 aggression but I love blurring the line... just curious.