你好！我是王明。

「Nîhaô! Wôshì Wángmíng.」
我 means I, me
是 means am, is, are, be
王明 is a given name.
Pronounced like “knee-how! Whoa shit Wahng-meeng”

This is the easiest way to introduce yourself. “Hello. I am Wangming.” It’s simple and straight to the point.