I have 2 yorkies. My oldest (6) Belle is very obedient (I think). I swear she understands everything you ask of her. She learns tricks quickly. (These are such smart dogs!) I recently got Daisy (5 months old) and would like to train the both for obedience trials. I have only seen these on tv. Any suggestions on where to begin on this venture? I am hoping this is something my youngest son, 12, (another animal lover) and I can do together.