YOU SAID:
Hello there, young fellow, how are you doing on this fine afternoon?
INTO JAPANESE
こんにちは、若い仲間、あなたはこの晴れた午後にどうしていますか?
BACK INTO ENGLISH
Hi, young fellow, what are you doing this sunny afternoon?
INTO JAPANESE
こんにちは、若い仲間、あなたはこの晴れた午後に何をしていますか?
BACK INTO ENGLISH
Hi, young fellow, what are you doing this sunny afternoon?
That didn't even make that much sense in English.