One of the serious afflictions of International Communications Disorder is loss of business. And complications from ICD include the loss of valuable time and good will in building productive business relationships.
Circumstances vary too widely.
It is possible, however, to lay out some basic guidelines which, in combination with an understanding of the region's cultural signposts and individual countries, will serve the international business person well. Everybody is different, even in homogeneous, collectivist societies like Japan and South Korea. People within a family or an organization are different. Organizations are different from one another. Nations are different.