How would I respond to '뭐해?'
I'm learning Korean and I seem to trip on this question. It's basically 'what's up?' right? Is there a basic answer or do I just ask back?

Or are they actually asking for what I am doing/ how I am doing?

Thanks!

Question

How would I respond to '뭐해?'
I'm learning Korean and I seem to trip on this question. It's basically 'what's up?' right? Is there a basic answer or do I just ask back?

Or are they actually asking for what I am doing/ how I am doing?

Thanks!

Answer

Yes, they're asking you what you're doing at the moment.

You can answer:
그냥 있어, 아무 것도 안해 ; nothing special.
TV 보고 있어
요리하고 있어
자고 있었어
노래듣고 있었어
인터넷하고 있어
영화보고 있어
밥먹고 있어
etc. :)

Answer

Yes, they are literally asking for 'what you are doing'  now :)