According to the British "Independent" report, researchers found that about 80% of men and women, regardless of whether they are left-handed or right-handed, turn their heads to the right when approaching the person they are kissing, and about 20% turn their faces to the left. The latter way of kissing not only may cause the kisser to touch the other person's nose, but also indicates that their feelings are relatively indifferent.

For years, the question of how to kiss, when to kiss and who to kiss has troubled many people. In this regard, British etiquette expert Liz Brewer said: "Unless you are very familiar with the other person, I don't think skin contact is necessary. Asking for a kiss when you first meet is very annoying."

German psychologist last year It is said that kissing is good for health. According to research by German psychologists, people who kiss their spouse every morning will live five years longer than those who don't. Frequent kissers are less likely to get into car accidents and get sick than non-kissers, and earn 20% to 30% more money than non-kissers.

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