YOU SAID:

g'day mate how ya goin

INTO JAPANESE

こんにちは、調子はどうですか

BACK INTO ENGLISH

hello how are you doing

INTO JAPANESE

こんにちは、どうしてる

BACK INTO ENGLISH

Hello, how are you doing?

INTO JAPANESE

こんにちは、どうしてる？

BACK INTO ENGLISH

Hello, how are you doing?