You should always ask permission from a dog’s owner before greeting their dog. Something as simple as, “Can I say hello to your dog?” will do the trick. If the answer is no, respect that and let the dog be. All too often, well-meaning people press on after a no, which can be unsafe. First, the owner’s concern was for their dog, not for you. Once you’ve asked for the owner’s permission, it’s time to ask for the dog’s. Rather than sticking your hand in the dog’s face or reaching out for pets, wait for the dog to come to you. If the dog approaches you, they are saying they want to meet you. To make yourself appear as friendly as possible, turn your body slightly to the side and look at the dog with your peripheral vision. You can also kneel down to the dog’s level so you aren’t looming overhead. However, if you are in any way uncertain about the dog, stay standing. Dogs don’t shake hands like people do, they use their nose to say hello, so hold your hand in a fist so they can approach and sniff if they choose.