Someone told me once that when first starting a job, get the lay of the land before trying to become a superstar. This has good application for church leadership too.
The best approach is to begin by doing a lot of observing; be as helpful as you can without be obnoxious, overly ambitious, or assertive. Try to become a team player as soon as possible. People will recognize your strengths without your having to broadcast them all over the organization. If you have strong self-esteem, people will find out that without your telling them.
After you have been accepted in the organization, go for it. And, by the way, the best way to receive a lot of recognition and credit is to give away as much as you can.