When they're hot they'll come on just about any call, don't over analyze what you sound like too much. I cow call more then bugling. Don't call from out in the open, don't over call. I prefer to stay on the move. Lastly you have to play the wind or you'll get busted. Noise is ok, but if they get a wiff of your stink you're done.
PS I should add, I've had limited sucess
So take my advice for what it's worth.