What does Joseph Nye's concept of soft power mean?

In the field of International Relations, power is often
defined as the ability of one country (Country A) to get other countries to do what
Country A wants (or to refrain from doing things that Country A does not want done). 
One way to accomplish this is through "hard power."  Hard power is usually defined as
the use of military and economic might to gain power -- to make a country do something
by threat of military or economic force.

Soft power, by
contrast, is the power of Country A to get other countries to
want to do what Country A wants.  If Country A can persuade
other countries to do what it wants on their own, that is soft power.  So soft power is
more of persuasion.  It is the ability to get other countries to have the same goals
that you do so that they will want to do what you want them to
do.