What is acting anyway?

Some assorted thoughts that I've been thinking on lately:

Acting is ...

Letting go of fear and being willing to take risks.
Jumping in with both feet.
Remaining open to new ideas.
Exploring.
Creating.
Being in the moment.
Keeping things fresh and new.
Reacting.
Responding.
Listening.
Improv.
Communicating.
Taking a journey.
Being present.
Making a connection with your fellow actors.
Making a connection with your audience.
Experimenting.
Feeling.
Telling a story.

Acting should not be ...

Inhibited.
Fearful.
Self-indulgent.
Literal.
Static.
Predictable.