Every year, Time magazine publishes its list of the 100 most influential people. The 2012 edition included names like Apple CEO Tim Cook, actress Viola Davis, U.S. Sen. Marco Rubio and 97 others who have made a major impact on the world. It’s easy to think that “being influential” is only for the famous, but that’s not true. Everyone has influence. By definition, influence is simply the capacity to affect…