manners可以
不过更正式的是
etiquette 原来是法文,意思是礼节
n.[U]
1.礼节;礼仪
This is a book on etiquette.
这是本有关礼仪的书.
According to etiquette,you should stand up to meet a guest.
按照礼节你应该站起来接待客人.
2.(同业间的)规矩;成规
medical etiquette
医学界的规矩