Everybody should know about some general and common good manner. So just have a look to this pic and learn good manners. You can enhance your talking and writing with these manners. If you want any grammatical help then you can take help from here.
English is the national language of Zambia and the most common language spoken. However, Zambia also has many indigenous languages that are spoken among tribes. Most of these 70 languages are members of the Bantu language.