Ludo is a 4 year old Australian Koolie. He was def but knows signs for all of his basic commands. When I told people this many of them would wave their hands around trying to give him commands. He was surprisingly independent for being def, but he always did much better with another dog to take some cue from. He would follow Ozzy’s, my dog, lead when he had gotten to far away for me to get his attention easily. He was also surprisingly trainable I was able to teach him several tricks while he lived with me.