Lead by example & sacrifice
In order to become a charismatic leader, you have no choice but to lead from the front. If you work hard yourself and follow discipline, you will naturally have the moral authority to ask others to follow you. In order to gain the charisma, you have to deliver the goods and lead by example. You cannot just sit down and be complacent.
A leader, in order to be charismatic, has to have the heart to make sacrifices. It is an extremely diverse term and does not imply physical sacrifices only. A leader has to promote others and cannot afford to be selfish.
Enjoy the success of your subordinates
A leader has to have a big heart and the ability to enjoy the success of the people who follow him. If you are a manager, you should be happy with the progress of the people who are reporting to you. Allow them to flourish and never hesitate to admire them, as it will increase your respect among the subordinates.
Be an opinion maker
A charismatic leader is never ordinary. He is an opinion maker. He is not someone who is led by the opinions of others. In fact, a charismatic leader makes people follow his opinion.
Never be hasty or emotional in your decisions. Take your time and think before you speak because every single word that you utter from your mouth may affect a lot of people.