There are two ways of learning how to behave properly.
You can buy a book of etiquette at the bookstore. It will contain all the rules of manners. If you read them, learn them, and apply them, you’ll get along pretty well. The only problem is that you’ll probably come across as being unnatural, stilted, and artificial.
The other way to learn etiquette is to be around cultured people. If you associate with gentlemen and gentle-ladies, you will gradually and unconsciously assimilate good manners. Instead of having to make yourself behave, good behavior will feel natural and normal.
The same is true of religion. If you want to learn the ways of your Creator, don’t just read Holy books. Hang around with people who are sincere and consistent about their spirituality.