Is it enough to say that you are passionate about something for it to be true?  I think not.  Passion should translate to action.  Emotions that do not move people to action, feelings unexpressed in some tangible form can't really be all that strong.

Passion does and gives without being asked. Passion keeps going--learning, trying--without being pushed.  Passion perfects without being criticized.  Passion never thinks that what is is good enough.

Anything less is not passion.