To address common behavioral issues like excessive barking or lunging during walks, owners should first ensure they are using a proper harness that provides adequate control without causing discomfort. Consistent training is crucial; using commands such as 'sit' or 'stay' can redirect the dog's focus and reduce reactive behaviors. Positive reinforcement techniques, rewarding calm behavior with treats or praise, effectively encourage good manners. If these issues persist, consulting a professional trainer or behaviorist is recommended to develop a tailored approach that addresses the specific causes of the dog's behavior.