Important: There will be different level exercises in the group. The Instructor will demonstrate in the same time a beginner and an advanced level  of  the exercise. And you can choose what applies to you. Do not rush or assume. Start with the easy exercise if you are not sure. You will get to the advanced level. 

Warning: It is important to be aware of your flexibility and athletic level of your body. If you haven't worked out before, your body will be sore. But that should not scare you, to the contrary, it should make you feel great because you are contributing in exercising a muscle that was not used before.