1, time and energy management: The life of boarders is different from that of day students, so it is necessary to plan the time in advance to ensure that there is enough time to complete the preparation work of cos, including purchasing the required props, clothes and even practicing some special skills of characters.

2. Budget: cos needs some capital investment, including buying clothes, props, cosmetics and even some special accessories. Make sure you have enough money to complete your cost plan.

3. Safety: Safety is a very important part of cos activities, involving various issues, including preventing the loss of valuables, ensuring the safety of activities and avoiding conflicts with others.

4. Boarders refer to students who live in school dormitories. These students choose to live on campus because the school is far from home or for other reasons. In boarding life, students need to adapt to collective life, abide by the rules and regulations of school dormitories, live with roommates, and respect each other's privacy and personal space. Boarding students can eat in the school canteen or canteen, or cook or buy snacks in the dormitory. On weekends or holidays, boarding students can choose to go home or stay in school.