Help others by showing wisdom. It is not necessary to do all the work for a person, just tell him which direction to move and how best to cope with the task. You will begin to be respected not only as a good specialist, but also as a good person. This is very important, as authority gained only for professional skills may prove short-lived. Helping other people will not only improve your communication abilities and allow you to understand your own business, but also create additional motivation for further development.
Set public goals and achieve them. It will prove to people that you are a high-level professional. Plus, it will help you achieve something truly meaningful.