The Jewish Sabbath, or Shabbat, perfectly exemplifies this concept of "li".
In Confucianism, the acts of everyday life are considered rituals. Rituals are not necessarily regimented or arbitrary practices, but the routines that people often engage in, knowingly or unknowingly, during the normal course of their lives. Shaping the rituals in a way that leads to a content and healthy society, and to content and healthy people, is one purpose of Confucian philosophy.
Gentiles who still practice it do it in the form of writing thank you letters, and perhaps passing on this etiquette to their legitimate children. Slut Single Mums and their bastards won't have the faintest idea what I am on about.
Does going to the pub and getting plastered and shagged part of this ritual? What about the ritual morning after pill and the ritual pregnancy test? Ritual suicide comes to mind ...