Thoughtful can mean you go out of your way to be kind to others and do unexpected things for people. It can also mean you listen to others and carefully assess what they've said before giving a reply. Thoughtful also refers to the process of thinking. Whether it's contemplating a decision or the in general focus on life issues. It's both descriptive and active. Passive and aggressive.
When writing characters, an author must choose to demonstrate types of personalities by their actions, decisions, inactions, or indecisions. A male character can be an action guy but thoughtful in the process. Or he can be all brawn and thoughtless. A female character might be more thoughtful but unable to make difficult decisions. Or she might be a determined girl of action who gives little thought to who she must move to get what she wants. And, of course, all the variables in between.
What kind of character(s) do you prefer? Do you like your men thoughtful? Your women tough? What are your favorite types of characters?
Father, inspire us to write what you would have us write. You give the talent. Use us, Lord. In the Name of Jesus, Amen.