Vietnamese life revolves around the family.
The Vietnamese family consists of the nuclear as well as the extended family.
It is not uncommon for three generations to be living together under one roof.
In Confucian tradition, the father is the head of the family and it is his responsibility to provide food, clothing and shelter and make important decisions.
Within the same tradition it is believed that after someone dies their spirit lives on. Descendents will "worship" their ancestors to ensure their good favour. On the anniversary of a person's death, ceremonies are held in their memory. They are also remembered during certain lunar festivals and souls are consulted prior to important decisions or occasions such as a birth or a wedding.
Face
As with many other Asian nations, the concept of face is extremely important to the Vietnamese.
Face is a tricky concept to explain but can be roughly described a quality that reflects a person's reputation, dignity, and prestige.
It is possible to lose face, save face or give face to another person.
Companies as well as individuals can have face or lose face.
For foreigners it is important to be aware that you may unintentionally cause a loss of face so it is important to be aware of your words and actions. Understanding how face is lost, saved or given is critical.
Someone can be given face by complimenting them for their hospitality or business acumen. Accusing someone of poor performance or reprimanding them publicly will lead to a loss of face.
Collectivism
In general, the Vietnamese are a collectivists.
The individual is seen as secondary to the group - whether the family, school or company.