Business manners sure are hard to grasp. In Japan, courtesy and formality are valued.
Have you ever come to Japan? If you have, you might have seen people distributing tissues by train stations or other public areas. Check this article to know about tissue-pack marketing!
The English first person is always "I", but there are many types of I in Japanese. Actually, which word you use represent what kind of people you are like. And of course, if you learn and speak in Japanese, you should call yourself somehow. Let's have a look at the variety.