Covering the signboard at the entrance of a guest house with cloth usually refers to the practice of covering the signboard at the entrance with red cloth when the guest house is newly opened. This practice has the following meanings:

1. Create suspense: Covering the signboard at the door with red cloth can create mystery and suspense, arouse people's curiosity and interest, and thus attract more people to visit and stay.

2. Keep happy: Red cloth symbolizes happiness and auspiciousness. Putting the signboard on the door can keep the festive atmosphere of the opening ceremony, which also means that the business of the guest house will be more and more prosperous.

3. sense of ceremony: in ancient times, covering the signboard at the door with red cloth was also a manifestation of a sense of ceremony, similar to the practice of the bride covering the red hijab. This can create a grand atmosphere and make the opening ceremony more formal and solemn.

It should be noted that this practice is only used when the guest house is newly opened, and it is not recommended in other cases. At the same time, pay attention to safety when covering the house number to avoid accidental injury caused by improper operation.