How can you prove you are a good leader?

well, if you really want to be a good leader, then do responsible things to prove you are responsible enough to lead a group. Then when you are leading a group make sure you are always talking in a loud voice, but not too loud! Make sure you always make eye-contact with the person or peolple you are working with. And don't forget to always keep your head up high to show that you have the cofidence of a leader! :)