Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to befriend dogs [title] Make sure the dog is friendly. [step] When approaching a strange dog, be particularly aware of its body language. If an owner is present, ask the owner if the dog is friendly.

Ending1: Make sure the dog wants to be petted. You can easily alienate a dog by approaching one that is nervous or agitated. Ending2: If a dog seems hesitant to meet you or extends its hand to you, it's the opposite of friendly. [substeps] Avoid approaching a dog by walking near it and stopping so that the dog can see you. Ending3: Usually, a dog looks friendly when greeting a stranger but when the dog is not, try something more benign. [substeps] Some common signs of friendliness on dogs are legs waving, laughing, and shoulder-shaking. Ending4: Common signs of friendly behavior are not always direct stares. If a stranger approaches the dog, its body language may indicate a definite dislike.

Answer format: ending1/ending2/ending3/ending4