Teaching children to safely interact with unfamiliar dogs involves several effective methods. Educate them to always ask the owner's permission before approaching a dog. Show them how to let the dog sniff their hand first and to avoid sudden movements. Teach children not to hug or stare directly into the dog's eyes, as these actions can be perceived as threats. Encourage gentle petting on the dog's back or side, avoiding the head and face. Role-playing scenarios and supervised interactions can reinforce these behaviors, ensuring children understand and practice safe, respectful approaches.