Many of the behaviors associated with an entrepreneurial mindset can be practiced and developed.
NFTE's entrepreneurship education model, for example, is built around developing entrepreneurial skills and mindset through experiential learning.
In practice, that means getting closer to real decisions and real outcomes.
Talk to a potential customer before spending months perfecting an idea.
Test an assumption before making a large investment based on it.
Sell something.
Review why an attempt succeeded or failed.
Make a decision with the information you have, then pay attention to what happens.
Learn when persistence is justified and when the evidence calls for a change.
You can become better at talking to customers, evaluating opportunities, testing assumptions and making decisions without having every detail resolved first.
Entrepreneurial thinking develops through doing.