What do you believe in?  What do you care about?  What upsets you?  What do you believe matters to you enough to determine to make a difference?

Join a club.  Run for office.  Commit your time, money and/or creativity to making the world a better place.  How?  That is for you to decide.  Figure out what you are passionate about and strive to make a difference.

What do you want your footprint in life to be?