It is customary for Bruneians to eat with their fingers rather than use forks and spoons. Always use the right hand when eating.
It is polite to accept even just a little food and drink when offered. When refusing anything that is being offered, it is polite to touch the plate lightly with the right hand . As the left hand is considered unclean, one should use one's right hand to give and receive things.
Bruneians sit on the floor, especially when there's a fairly large gathering of people. It is considered feminine to sit on the floor with a woman's legs tucked to one side, and equally polite for men to sit with folded legs crossed at the ankles.
It's rude for anyone to sit on the floor with the legs stretched out in front, especially if someone is sitting in front.
It is considered impolite to eat or drink while walking about in public except at picnics or fairs.
During the Islamic fasting (Puasa) month, Muslims do not take any food from sunrise to sundown. It would be inconsiderate to eat and drink in their presence during this period.
It is not customary for Muslims to shake hands with members of the opposite sex. Public display of affection such as kissing and hugging are seen to be in bad taste. Casual physical contact with the opposite sex will make Muslims feel uncomfortable.
In the relationship between sexes, Islam enforces strict legislation. If a non-Muslim is found in the company of a Muslim of the opposite sex in a secluded place rather than where there are a lot of people, he/she could be persecuted.
If you are found committing 'khalwat' that is seen in a compromising position with a person of the opposite sex who is a Muslim, you could be deported.
When walking in front of people, especially the elderly and those senior in rank or position, it is a gesture of courtesy and respect for one to bend down slightly, as if one is bowing, except this time side way to the person or persons in front of whom one is passing. One of the arms should be positioned straight downwards along the side of the body.
Leaning on a table with someone seated on it especially if he/she is an official or colleague in an office is considered rude.
Resting one's feet on the table or chair is seen as overbearing. So is sitting on the table while speaking to another person who is seated behind it. To touch or pat someone, including children, on the head is regarded as extremely disrespectful.