Your puppy immediately lowers himself into a sit:
This is common; since 'sit' is often the first position taught, it becomes the default position when your puppy's not sure what you want. Make sure you're not raising your hand at all--many people do so without realizing it. If you need to, put your arm or leg right in front of your pup's back legs so he can't sit down.If you can get your puppy to stand for a second, quickly reward him with a treat, then press lightly on his back, at the shoulder blades. He'll brace to meet the pressure, which keeps him in the standing position.









