With a little practice you'll be able to make any sound a live turkey makes on a mouth call.Even a gobble.To kee-kee form your mouth just like you are goin to whistle.It helps to have a call with very thin latex.To purr it's kinda like blowin air over your lips makin a horse sound.Not everybody makes calls the same way so the other guys can probally tell ya a diffrent way or at least explain it better.