Hip delivery from left to right: Hip delivery essentials: Straighten your legs, retract your coccyx (slightly retract your hips), and send (push) your crotch left and right with internal force. Repeat this hip-sending action, straighten your legs, control your shoulders with your hands, try to keep moving up and down, and move your crotch in the middle.
Hip-lifting: Hip-lifting essentials: Keep your legs together and straight, with the tailbone retracted (the buttocks slightly retracted), hip-lifting up and down, and repeat this hip-lifting action. Keep your legs straight and try not to bend, and keep the lower part of your crotch undulating rhythmically.