Counselors ask students to check their sleep in various postures online. What special ways do counselors use to check their sleep?

Sing a song and record it for more than 10 seconds

Isn’t this trick very innovative? Many friends may not understand this method very well. In fact, counselors are While checking the dormitories, it can not only ensure the safety of students, but also increase the relationship between roommates. It may seem like checking the dormitory, but in fact it also increases everyone's memories of the university. Just like this singing technique, it actually doesn't work for many students, but it is also because of the technique that everyone can remember the four years of classmate friendship and the connection with the instructor.