I'm a righty. Though I've been a sort of lefty when I broke my right wrist. I could write with my left hand pretty well. But after a মাস after my right hand healed I tried to write with left again and it was horrible. I guess I হারিয়ে গেছে my lefty mojo... =p
I'm mostly a righty, but I also am partially ambidextrous. There are certain things, like cutting অথবা using a computer mouse, that I do with both hands equally, but I can only write with my right hand.