I use sweet apples, like Delicious, peel and core it and then slice it into pieces or sections. Cody has to do something for it, just re-prarcticing, sit, down, over, usually with just my hand movement. Then, of course, I'll give him the rest, I try to keep it fun and him active since he's getting older. He used to eat veggies but learned that dried liver is tastier. basically, he'll eat everything and anything, being part Lab!!.