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How Do Dogs Show Affection to Humans?

Dogs communicate with us through body language and actions -- here are are four ways dogs show affection to humans.

Annie Phenix, CPDT-KA  |  Jun 13th 2017


As a professional dog trainer, I am immersed in teaching dogs and their humans. It’s rare to get a question I haven’t been asked many times before — but I did recently, and not from a client but from a cat-fanatic friend who has never had a dog. She asked: How do dogs show affection to humans? Great question! Even those who have lived with dogs can sometimes misread canine language.

Before I share the top ways that dogs show affection, though, please keep in mind that something occurring to a dog IS aversive if the dog feels it is. In other words, it’s not just children who need to ask if they may pet someone else’s dog. Even if given permission to say hello, please not only be respectful of the dog’s space, but also watch his body and face closely to make sure that your petting is pleasing. Not all dogs want to be touched by strangers!

Here are four ways dogs show affection:

why do dogs wag their tails?

My dog Baby has a tail with real volume. Photo by Melvin Peña.

1. Dogs show affection with their tails

A wagging tail speaks volumes (although what is communicates isn’t as important to canine language as is a dog’s face and overall body posture). I love seeing what I call the big, windy helicopter tail on a dog I am meeting. My Border Collie, Radar, gives a big, circling tail wag when he meets people. If you tried to move your head around in the same way as his tail moves, you’d get dizzy quickly.

A dog with a wagging tail can bite someone or another dog, by the way, but it won’t look like Radar’s big wag. A dog’s tail that is up over his back and stiff is not a come-let’s-be friends tail. Walk away from a dog showing such stiffness, as it is often a warning flag. Look for the big, circling tail and wagging butt, especially if the dog is like my dog, Monster, who doesn’t have a tail so much as a stub. He waggles his entire butt when he is happy and meeting a new person.

2. Dogs show affection with their faces

What’s happening with a dog’s face when she is happy with a human? Dogs can smile or grin, like the one in the photo below. In general, you want to see an open, relaxed mouth and not a shut-tight grimace. Panting can be a sign of stress, so a happy dog might have her mouth open toward you, but shouldn’t be excessively panting  — unless it’s a hot day or she has been exercising. Canine language must be taken in context.

The I-love-you dog eyes are not hard but soft, round, and probably looking you right in the eyes, which is completely different than a hard stare with little to no blinking coming from a dog — that’s a warning to back up. You also don’t want to approach a dog showing “whale eyes,” where the eyes are wide and you can see the whites around the pupils.

Watch out for “cheek puffing,” as well, where his mouth is closed and he rapidly blows air out of his mouth, causing his cheeks to go in and out. That’s often a sign of nervousness.

3. Dogs show affection with jumping

Not all humans, of course, like to be jumped on, but often dogs do so to get closer to your face and give you a big “Welcome home, friend!” lick. The human face is incredibly important to dogs. They are so attuned to us that they know us better than we know them. Most humans like to see an exuberant dog greeting them when they get home, but we trainers like to give the dogs different greeting ritual behaviors, like a lovely sit with a happy tail thumping on the ground.

Please be aware that sometimes dogs jump on humans for other reasons, such as those who suffer from separation anxiety and only get relief when their humans walk through the door. Frantic jumping tells you something a bit different than happy-camper jumping.

Also, some dogs can jump and boink you in the face hard with their muzzle. That is not a friendly greeting. It’s hard to get a good look at a dog’s eyes and mouth position as they are jumping toward your face, so while jumping up can be an indicator of happiness that you have returned to the home castle, it can mean others things, as well.

4. Dogs show affection with leaning

I’ve worked with some large Labradors and Rottweilers (as well as other breeds) who love to lean on their human’s leg while getting a scratch hello. The dog is often looking up and into the their humans’ eyes during the lean in, looking all smiley with a mouth open and soft eyes. On the other paw, sometimes an insecure dog leans in for comfort and support. Nothing wrong with that.

Once, however, I met a “junkyard dog” who the owner proudly told me he had bred himself and that the dog was a combination of about five perceived tough-breed dogs. That dog never growled or put his hackles up when he met me. He gave me a hard stare on his way over to lean against my leg. It was not a loving lean. It made my blood run cold. He didn’t bite me, but he warned me for sure. His body was stiff as a board, and his eyes told me that one wrong move and he’d dispatch me.

Take a look at what the face, body, and tail are doing as a dog leans in. You want to see an open mouth, rounded and relaxed eyes, and a relaxed body with a swooping big tail or butt wag.

It’s helpful to dogs everywhere for humans to slow their approach when meeting a new dog and to consider: Does this dog really want to greet me? Don’t take it personally if the dog isn’t interested. Petting such a dog is harmful to that dog, and who wants to be pushy to another species? Do take it personally, though, if you get any of the signs of affection noted above.

Read more by Annie Phenix:

About the author: Annie Phenix, CPDT-KA, is a force-free professional dog trainer enjoying her mountain-filled life in Colorado. She is a member of the Pet Professional Guild and the National Association of Canine Scent Work. She takes her highly trained dogs with them everywhere dogs are welcome because of their exceptionally good manners. Join Annie on her dog-training Facebook page.