Roleplaying is when tu are playing someone else's role. Sounds simple? It can be. You've just gotta know how to work it.
Do I pick an original character (OC) o a character from a story?
This all depends on your personal preferences. I'm not even going to get into how much más work one is rather than another, because in all honesty I've been down both roads and either is as much work as tu put into it.
So, what's it like to RP a character from a story?
I can't stress this enough. tu need to do some research on the character you're playing....