"My 2.5 year old yellow lab is very trainable, but she gets bored with regular treats to encourage her to perform a complicated trick. Pro-Treat freeze dried beef liver treats are the only treat she will consistently drool for, time after time.
I cut each square into 4, each about the size of a kibble. My dog smells them in my hand, is focused completely and performs tricks with many steps, knowing she will get a liver treat at the end!"