The location of the "padlock" is designated by the woman, or the woman does not specify it, and it is generally at the woman's home by default. Before the man goes to the padlock, he should prepare two bottles of white wine and tie them together with a red rope.

Padlock is a special engagement ceremony, also known as "tying daughter-in-law", "occupying daughter-in-law", "drinking" and "padlock lock lock", which is an essential etiquette for men and women in the process of marriage.