The first place to start is with learning how to prepare your body by standing in the correct posture. It's pretty easy to get there, the challenge is to maintain it throughout your class. Just need practice, practice, practice!
An effective warm up ensures that the body's circulation, breathing and energy production (aerobic system) increase gradually so that when dance activity begins these systems are working at the right level to meet the increased demand for energy.
Warming up before you dance also improves your performance. It helps to decrease any tension in your muscles and body by mobilising your joints which will help you to work on your flexibility. Completing a thorough warm up before you dance can also prepare you mentally for dancing.
The main change of belly dance is that requires you to insulate different parts of your body , usually you hips, but it could also be your chest, arms hands or head.
This means that you move just one part of your body whilst keeping the rest still.
Some people find this easier than others, but everybody can achieve some level of insolation .