Types of Barking
Alert barking (doorbell, strangers), attention/demand barking (directed at you), anxiety barking (separation related), boredom barking (insufficient exercise), and reactive barking (at other dogs) each need different solutions.
Teaching Quiet
Trigger barking, let it happen 2-3 times, then hold a treat at the nose. Dog stops barking to sniff. Say "quiet" the instant barking stops, reward. Build duration of silence before rewarding. Practice daily.
Attention Barking Solution
Never respond to attention barking — any response maintains it. Turn completely away, zero eye contact, no talking. The moment silence occurs, turn back calmly and give what they wanted. Extinction is hard (behavior gets worse before it gets better) but very effective when consistent.