Kissing a friend as a greeting or sign of affection is a practice that varies significantly across different cultures. In many Latin American countries, such as Argentina, Colombia, and Chile, a kiss on the cheek is a standard greeting even between casual acquaintances. This practice is common among both men and women and between men and women. Similarly, in Southern European countries like Italy, Spain, France, and Greece, cheek kissing among friends and family is frequent, with the number of kisses varying by region. In the Middle East and North Africa, kissing on both cheeks is a common greeting between friends of the same gender, though it is less common between people of opposite genders in more conservative societies.

In contrast, in the United States, Canada, the United Kingdom, and much of Northern Europe, kissing on the cheek is generally reserved for close family members or romantic partners. In these cultures, a friendly kiss can be seen as overly familiar or even inappropriate. East Asian cultures, such as China, Japan, and Korea, rarely involve kissing as a greeting, even among close friends. Physical displays of affection are generally more subdued in these cultures. Understanding these cultural norms is essential for navigating social interactions across different societies. When unsure, a handshake or a verbal greeting is always a safe option.