“Older people may not want to be kissed at all and even if they do not mind they often only expect one kiss," they advise. “Some men now kiss socially, but kissing is rare amongst the older generation and within more traditional professions or in very rural areas. An air kiss, with no contact at all, may seem rude or impersonal, but at least it is not intrusive. A very slight contact is best, and no sound effects are needed.”