Whats the difference between GS-ing & Tour-ing?

I need to clear up a little confusion surrounding GS-ing.

Whilst I really enjoy this site, I am also keen on doing some touring around the country....both on and off road. Is this classified as GS-ing or TOUR-ing ?? :shock:

When I have a little time, I would like to hook up with forum members on a decent ride.....need to get the "yellow beast of burden" dirty!!!