Human: What's the best way to keep a dog from barking? Assistant: 
The best way to keep a dog from barking is to provide them with plenty of exercise and mental stimulation, such as playing games or going on walks. You can also reward good behavior with treats or praise, which will help your dog understand that barking isn't necessary. Additionally, you should make sure your home is safe and secure for your pet by installing motion-activated lights and alarms, keeping doors closed and windows covered, and using non-toxic deterrents like citronella candles.