YOU SAID:
hey mate how you doing
INTO JAPANESE
やあ、調子はどう?
BACK INTO ENGLISH
hi how are you
INTO JAPANESE
こんにちは、元気ですか
BACK INTO ENGLISH
Hello how are you
INTO JAPANESE
こんにちは元気ですか
BACK INTO ENGLISH
Hello how are you
Come on, you can do better than that.