First of all, the upper part and the lower part must be able to distinguish. Generally, couplets are flat and even in rhyme, so we can judge whether they are upper couplet or lower couplet according to the ending sound of a Spring Festival couplets.
If a couplet ends with a flat tone and rising tone, that is, the first sound and the second sound, it means the upper couplet; if it ends with the third sound and the fourth sound, it means the lower couplet. This judgment method is relatively simple and clear at a glance.
After the upper couplet and the lower couplet are clearly divided, you must know the left and right of the couplet. The upper couplet should be posted on the left hand side, while the lower couplet should be posted on the right hand side. This is the correct paste method.
In addition to being able to distinguish between upper and lower couplets, the time of posting Spring Festival couplets is also very important. It is usually between 6 am on New Year's Eve and noon on 12. Tear up the old Spring Festival couplets and paste new ones, which symbolizes the beautiful meaning of saying goodbye to the old and welcoming the new.