Reflectiveness is thinking carefully and quietly.
First step to be responsive.
Smart people look back on, and learn from, experiences. They do not get stuck in the past but know they must look in the review mirror to properly navigate the front window. As they look back they take inventory on what they can learn from their experiences. They either perfect and repeat past efforts or abolish strategies that clearly did not work. They take the time to think about decisions before jumping in, and after ward, actively reflect to gain deeper insight into what worked and what didn’t.
Likely meditative, thoughtful approach.