Use a cue word, such as "down," to signal to your dog what you want them to do.
Get your dog's attention by saying their name or using a treat.
Gently guide your dog into the down position with your hand.
Reward your dog with a treat or praise when they lie down.
It takes time and patience to teach your dog to lie down.
Once your dog is able to lie down for a few seconds, gradually increase the duration.
Always be positive and encouraging when you are training your dog.