Get started with belly dancing and undulation with help from this free lesson. When doing undulation, first lift your chest up by contracting your muscles and then contract the muscles in your belly to bring the movement back down. Get comfortable using this belly dancing technique with tips and tricks from an expert: Sahira began her career as a Middle Eastern dancer in Houston, Texas under the direction of Thalia and Shakira Masood-Ali. Learn more belly dancing dance moves from this expert by searching WonderHowTo! You're only practice time away from ruling the dance floor!