Ok. It's kinda just like a story.
But you play as your character. Like I think your Ginny? Right.
So you would say from Ginny's POV but really you are not Ginny you are just writing as Ginny.: Ginny watched as Professor McGonagall walked around the classroom helping everyone with their spells. "I can't believe how fast everyone learns" Ginny said to Harry.
Just stuff like that. You would be saying what Ginny says but only Ginny...
Get it?