Creating the characters in my story is definitely the most fun for me. I love being able to form them any way I want: their strengths, weaknesses, goals, families, pasts, the situations they find themselves a part of. I always get ahead of myself and imagine the heroine/hero of my story--what they look like, their passion(s), their disposition, etc.--before I come up with a plot, an adventure for her/him to go on. I don't know if that is how a lot of you do it, but I always end up doing that.
Anne from Anne of Green Gables
Anne is quite the character, isn't she?
Have you ever seen the movie Miss Potter? It's a movie about Beatrix Potter and how she became a writer and illustrator. It's a good movie. Anyways, there are parts in the movie where Beatrix is drawing Peter Rabbit or her other animal characters, and they will begin moving around on the page before her. She will then talk to them; scold Peter for moving while she was trying to finish drawing him, tell the little mice not to bicker so (the second one was just an example I made up :)). The point is, her characters were real to her. They were so real that she could see them moving and would even talk to them like they were actually real animals.
Emma from Jane Austen's Emma

