Young Kissing Girls

The kiss of respect has also represented a mark of humility and reverence. Its use in ancient times was widespread, and Nyrop gives examples: "people threw themselves down on the ground before their rulers, kissed their footprints, literally 'licked the dust,' as it is termed." "Nearly everywhere, wheresoever an inferior meets a superior, we observe the kiss of respect. The Roman slaves kissed the hands of their masters; pupils and soldiers those of their teachers and captains respectively." People also kissed the earth for joy on returning to their native land after a lengthened absence, as when Agamemnon returned from the Trojan War Nyrop points out, however, that in modern times the ceremonious kiss of respect "has gone clean out of fashion in the most civilised countries," and it is only retained in the Church, and that in many cases "the practice would be offensive or ridiculous."
Kiss of friendship
The kiss is also commonly used in American and European culture as a salutation between friends or acquaintances. The friendly kiss until recent times usually occurred only between ladies, but today it is also common between men and women, especially if there is a great difference in age. According to Nyrop, up until the 20th century, "it seldom or never takes place between men, with the exception, however, of royal personages," although he notes that in former times the "friendly kiss was very common with us between man and man as well as between persons of opposite sexes." In guilds, for example, it was customary for the members to greet each other "with hearty handshakes and smacking kisses," and, on the conclusion of a meal, people thanked and kissed both their hosts and hostesses.