Learning how to practice business etiquette is not something that you can understand overnight. There are some things that you can do. The first is to make sure that you will read more books, magazines, and articles about business etiquette. You will learn a few details here and there.
You can also watch top people in the industry and how they interact with people. Remember that they will not get to their position if they are not good. It will be wise to check out those who have started from the bottom but have reached the top of the career ladder because of their perseverance and hard work.