YOU SAID:
Hey man how was your day?
INTO JAPANESE
おい今日はどうだった?
BACK INTO ENGLISH
Hey, how was your day?
INTO JAPANESE
今日はどうだった?
BACK INTO ENGLISH
How was your day?
INTO JAPANESE
今日はどうだった?
BACK INTO ENGLISH
How was your day?
That didn't even make that much sense in English.