Cheek kissing departing. It is uncommon between strangers of any sex, and it may be considered offensive otherwise. It is standard for children and parents, children and grandparents etc., and in its "formal" form it will be two kisses, one on each cheek. It may be a standard formal form of greeting in special events such as weddings. However, in Portugal and Spain, usually, women kiss both men and women, and men only kiss women (so, 2 men rarely kiss). In Portuguese families men rarely kiss men (except between brothers or father and son) , the handshake is the most common salutation
Cheek kissing kiss three times, typically starting at the right cheek. In Serbia and Montenegro, it is also not uncommon for men to kiss each other on the cheek three times as a form of greeting, usually for people they have not encountered in a while, while male-female and female-female kissing is also standard. In Bulgaria cheek kissing is practiced to a far lesser extent compared to ex-Yugoslavia and is usually seen only between very close relatives or sometimes between close female friends. Kissing is usually performed by people of the opposite sex and between two women. Men kissing is rare even