There are trainging techniques that you can use. Learn here https://tr.im/chP70
HEEL:
1. A dog straining on the lead is the result of improper early heel-training. Reinstruction will be required to remedy the fauly.
2. Correct positioning ensures that the dog can anticipate the owner's actions such as a change in direction, sudden stop or new instruction.
3. A lagging dog can also indicates bad heel training. Frequent sharp tugs on the check chain should encourage the dog to keep up with its owner.
SIT:
1. On the command 'sit', press the dog's hindquarters firmly down with your left hand while keeping the dog's head supported in the air.
2. Keep the lead taut in the right hand, giving it a slight upwards pull as you press the hindquarters down to help the dog respond.
3. Crouching down beside, but not over, the dog may prove helpful in teaching more unruly dogs to perform the exercise.
SIT STAY:
1. Pul the dog in the sit position by holding your hand up in front of the dogs face and giving the command ' sit' in a firm voice.
2. Then move in the front of the dog jerking on the check chain if any attempt is made to move. If the dog does move, start agian.
3. Keeping your hand high up in front of the dog, and repeating the command 'stay', back off bit by bit, increasing the space between you.
SPEAK:
1. Tell the dog to speak, if he doesnt, the owner must bark to encourage the dog to bark
2. soon enough the dog will bark