If there is a lintel, you can stick it on the lintel. If there is no lintel, you can stick a stick on the doorposts on both sides, pull a cloth in the middle, and pull the couplet on the cloth like a banner slogan.

Introduction to couplets: Couplets, one of the traditional cultures of the Han nationality, also known as couplets or couplets, are antithetical sentences written on paper, cloth or carved on bamboo, wood and columns. The antithesis of couplets is neat and even, which is a unique artistic form of Chinese language. According to legend, couplets originated from Meng Changjun, the master of Shu after the Five Dynasties. Couplets are the traditional cultural treasures of Han nationality in China.