i did about 5-10 minutes. also, make sure you switch up the order of your commands. for example. i started out doing "sit, shake, down". but soon enough Cody just did all 3 when I said sit. So, it is important to mix it up, and keep them guessing. at first, make sure you train your pup in a place with very little distractions...you'll add distractions down the road