Second, POP practice has no shoulders, which is also a favorite mistake made by many beginners. The shoulder undulation you saw in the video is definitely not what POPPER deliberately did, but the visual effect caused by the combination of POP and chest and arm.
Third, after half a month to 1 month of POP practice, you should be able to feel the basic changes of POPPIN at first, so you can start to join the second exercise, which is called FRESNO [the name comes from the town where the inventor of Poppin Boogalooostyle lives], that is, the balanced contact action of POP is: one arm is raised forward, the forearm is slightly bent, and the crotch is slightly biased towards the center of gravity, and then