Tik Tok's 20-second dance class is best from 10 to 20. Judging from the relevant information, learning a skill is undoubtedly the best choice for society, and it is best to enroll in private education classes. It is best to choose 10 to 20 private classes. For a skill, it is divided into contact period, understanding period and proficiency period. Therefore, it is most appropriate for private education classes to register around this cycle. Generally, it is the lowest ten levels. Keep practicing and you can achieve these three cycles, and the rest is to practice by yourself.