I am a newbie on this site so please bear with me. I know there is something to this clicker training, but I don't know where to start. I have a 2 year old mini Aussie that stresses up BIG time. This problem needs to be fixed, but I don't know where to start. She yawns, sniffs, and continually has her mouth completely open, like she has this grin on her face. I have been told these all are stress symptoms. I did train the retrieve with a clicker. boy, it was sweet, but I just barely know enough to be dangerous. Is there a particular person, or method that anyone could recommend for a novice clicker trainer like me?