I´d probably be confused, puzzle what the fuck is wrong with my mind, drink a bunch of vodka and wake up the next morning with "fem clone of moi" and a mayor headache, we probably fucked but noone can remember, because we emptied enough bottles to make mikail gorbatschow lose his pants.
Then we´d tag together, weird people out, and with out combined intellect, overthrow the people around us and become an unstoppable tag team. All given that she also "thinks" like me...which would mean she would probably be a tomboy and shave her head<.<
This is probably how it would go, but i dunno for sure, because i haven´t had the opportunity of meeting a clone of myself.