How Do You Address Karate Teacher?

How Do You Address Karate Teacher? Sensei is the proper title that karate students use while referring to their teachers. How do you greet a sensei? “Sensei ni rei!”: Bow to the instructor. When you’re bowing, you can say “onegaishimasu,” which, roughly translated, means “Please,” i.e., please teach me, please help me, please hold class,