Hello Alireza Oraei,
Congratulations and good luck with your class.
To make the class attractive to clients, you could ask them to bring their own music and what body parts they are interested in spending more time on.
Talking with the participants before and after class will give you many ideas; just be sure to write them down for future reference.
Getting to know the names of everyone will help build camaraderie, too.
NAPS 2 B Fit