also keep your dog from eating something that might be harmful to him.
all you need to train your dog "leave it" is a handful of bite-sized treats, and a quiet area. if you are clicker training, you will also need your clicker.
to start, take one of the treats in your hand, and allow your dog to see it. as soon as he is interested in the treat, give him the command "leave it," and close your hand so that he cannot get the treat.
it's very important that you keep the treat covered at all times when you are in the beginning stages of training this command. if you accidentally allow 