YOU SAID:
Hi would you like to hang out sometime
INTO JAPANESE
こんにちは。いつかお出かけしますか?
BACK INTO ENGLISH
Hi, would you like to go out someday?
INTO JAPANESE
こんにちは、いつか出かけませんか?
BACK INTO ENGLISH
Hi, would you like to go out someday?
That didn't even make that much sense in English.