One thing I haven't thought about much is: what is the interior life of my character? This can include elements such as: How do they choose to spend their time and why? What do they choose to talk about and why? What do want their life to be like in twenty years? What do they think of the world? What are their values? What are their thoughts?
Heck, for that matter, what is my interior life?
I'll be pondering some of these ideas as we begin a new decade.
Happy New Year!