Are you trying to teach your Cimarron Uruguayo to sit? The skill of sitting up is quite easily taught to small dogs, yet much larger doggies are another story. It is tricky for them to sustain their equilibrium.
Teach Your Cimarron Uruguayo to Sit: Planning
Sitting is one of the first techniques that should be taught to a Cimarron Uruguayo and is the groundwork for myriad other techniques.