The western etiquette about "kissing" is more specific, where to kiss and how many times to kiss.

Kissing is a popular etiquette in the west.

There are different legends about the origin of "kissing" in the East and the West. The popular view is that kissing started in ancient Rome when women were forbidden to drink alcohol. When a man comes back from going out, he must first smell whether his wife has drunk. If the wife doesn't smell of alcohol, the husband should kiss him. This is the transition from "smell" to "kiss" Since then, it has become the first etiquette for couples to meet.

Kissing in some African countries and regions is not limited to expressing love between men and women, but also expressing respect and concern. African aborigines regard sheikhs as "parents", and people compete to kiss the ground where sheikhs walk to show their blessing and respect. In ancient Rome, the emperor allowed the highest maid-in-waiting and slave to kiss his lips and the second to kiss his hand. Ordinary people can only kiss the emperor's knees and instep as "honor"

There is also the custom of kissing a bald head in the world. In Sanglang Village near Leeds Town in the Kingdom of Belgium, every year in the spring and autumn rainy season, a group of "skinheads" from Germany, the Netherlands, France and Belgium come here for pilgrimage. After meeting, they enjoyed kissing each other's bald heads.

In modern western culture, kissing is a common way to express love.

As an expression of love or sexual desire, kissing is lip-to-lip contact between two people, which is usually more intense and lasts longer. Enthusiastic couples or spouses may suck each other's lips or put their tongues in each other's mouths (French kissing). Sexual kissing can be one person kissing all parts of another person's body. In romantic and sexy kissing, the feeling of the body is the most important.

If it is not to express love, kissing is a common symbolic body language, which can express greetings or obedience. Kissing at this time is not to experience the physical feeling it brings.

Kissing on the cheek is a traditional social etiquette in many parts of continental Europe. The number of kisses and the order of touching cheeks are different in different areas.

Kissing can also show respect and obedience, such as kissing a monarch or a pope.

Kisses with strong omen, such as "farewell kiss" or "death kiss".