Techniques for mixing bread dough with stand mixer
Mixing bread with a stand mixer will normally take 10-12 minutes, depending on speed.  A lot of this smaller mixers will tend to 'walk' if they are not anchored.  Look for the dough to be smooth and supple, but not shiny.  If it is shiny, and appears wet, it is over mixed.
To start, it will look choppy and rough, sometimes you will have to pull all of the dough off of the hook and start up again, because it seems the dough will gravitate to the top of the hook and that part of the dough will not mix properly.  This of course depends on the dough consistency to start with.  Remember that a crusty bread dough will be stiffer, and a sweet dough will be soft, and should have a spot on the bottom that doesn't clear the bowl.