If you want to develop courage, then simply act courageously when it's called for. If you do something over and over again, you develop a habit. Some people develop the habit of courage. Some people develop the habit of non-courage.
Brian TracyFive Great Habits for Better Relationships: acceptance (smile each time), appreciation (say thank you to everyone), admiration (compliment people on their appearance or clothing, etc.), approval (praise immediately, specifically and repeatedly), and attention (be a good listener).
Brian TracyWhen you see yourself as calm, positive, truthful and possessed of high character, you behave with greater strength. Other people respect you more. You feel in control of yourself and the situation.
Brian Tracy