I see a lot of sentences end in なの that are questions. What does なの mean and how should i use it when asking questions?
なの is the use of explanatory form in questions, usually when asking for more detailed explanation of circumstances rather than simple yes/no or short explanation.
I hope it helps,
When I was a student, I thought it was a casual version of ですか, so I was going around my friends saying 元気なの？ until one of them pointed out that it actually sounded like I thought they weren’t genki. So since then I’ve just said 元気？
元気なの？ feels like sayings “you good?” To an obviously over intoxicated friend.