It depends on the local customs. Couplets can be pasted on the wall, or on both sides of doors or doorframes. According to the traditional pasting method, when facing the gate, the upper couplet is pasted on the right and the lower couplet is pasted on the left. In addition, when pasting couplets, paste banners above the door frame, with the upper tone pasted on the right side of the gate and the lower tone pasted on the left side of the gate.
Couplets, also known as Spring Festival couplets, are usually posted on both sides of the gate as decorations to express their yearning for a better life.