Shadow - Food most of the time
Micki - Gotta have food, no questions
Mini - She is happy with praise
Kyra - Toys, she has turned into a frisbee nut and will do anything for it!!
Jack - I've been weaning him off the food, only when he learns new tricks he gets a treat but he has been mainly working for praise, one in a while he is fine with a thank you. But with food he pays attention 150% and will run through all of his tricks hoping to get some.