Indonesia shares the same attitudes to dress and social taboos as other Southeast Asian cultures . In addition, Indonesians are generally very sociable, and dislike doing anything alone. It's normal for complete strangers engaged in some common enterprise - catching a bus, for instance - to introduce themselves and start up a friendship. Sharing cigarettes between men is in these circumstances a way of establishing a bond, and Westerners who don't smoke should be genuinely apologetic about refusing; it's well worth carrying a packet to share around even if you save your own "for later".