Preventing dog reactivity or separation anxiety can be a challenging task, but there are some things you can try to help your dog feel more comfortable and secure. Here are a few ideas: Provide plenty of exercise and mental stimulation: Regular exercise and mental stimulation can help your dog feel more balanced and calm. This can be in the form of walks, runs, games, and training sessions. Gradually acclimate your dog to being alone: If your dog is experiencing separation anxiety, try leaving them alone for short periods of time and gradually increasing the duration over time. This can help your dog become more accustomed to being alone. Use positive reinforcement training: Use positive reinforcement techniques to teach your dog to associate good things with being alone or encountering other dogs or people. Create a safe space: Provide your dog with a crate or designated area where they can feel safe and secure when they are alone or when they are feeling anxious. Consult with a professional: If your dog’s reactivity or separation anxiety is severe or not improving, consider consulting with a professional dog trainer or behaviorist for additional guidance and support.