how does the way we speak tells us who we are-shaoyi

How does the way we speak tell us who we are..lets see..this is a difficult question.By the way we speak like singlish aka singapore english tells us we might be singaporean.The words are ....lah/eh etc.How about americans?They do not speak broken english or singlish at all.They also speak very fluent english you know.Some singaporeans can do that but most of us speaks singlish or broken english.How about indians speaking english?They might pronounce some words diffrent like us.i can't think of an example but never mind.Now how about malay people..They sometimes also speak broken/singlish but not as much as us i think..That's all i can say.bye.