When you call Korean name....

How to address a Korean person by name

* Please correct my writing and give me a question.

I'll tell you how to call a name in Korean.

I'll tell you how to address a Korean person by name. 
When you call Thomas, you say Tommy.

When you address Thomas, you may call him Tommy.
To use a nickname is easy to call and familiar.

To call someone by a nickname is easy and familiar.
When Koreans call one’s address friends or younger people, they use –아, -야 at the end of name. It is called a vocative ending. Using it, it sounds friendly and is easy to pronounce. See some examples;

보라~(X), 이리 와! -> 보라야~!
보라+야! (수 has no Batchim – ended with a vowel)
창민+아! (in case of ended with Batchim, use 아)

And I’d like to add an another usage.
“name+ ~이 + a particle(는, 가, 를, 도)” is used in case of a name ended with Batchim
창민이는 노래를 좋아한다. (=창민은 노래를 좋아한다.)
창민이가 노래를 부른다. / 창민이도 왔다. / 나는 창민이를 만났다.

Sorry I changed your writing so much. I understand it but couldn't just change one word here or there to make it fluent. Thanks for the lesson. I have been wondering about the familiar name endings I hear. I still don't understand the word Batchim.

What is it exactly?

When you call someone by their Korean name....

* Please correct my writing and feel free to ask me any questions (you may have).

I'll/I'm going to teach you how to call/address someone by their Korean name. 

In English for example, when you call someone/a person Thomas, you can call them "Tom"... or if the person is a child,(you can call them) "Tommy".

 
People use nicknames because they are easy to remember.

When using/saying the name of your Korean friend or someone younger than you (than you are), Koreans they use –아, -야 at the end of the name. It is called a vocative ending. If you use it, you'll sound friendly and it makes any name much easier to pronounce.

Here are some examples;