Dogs come in all shapes and sizes - the UK Kennel Club recognises 221 different pedigree dogs, from Affenpinscher to Yorkshire Terrier (there are sadly no dog breeds starting with the letter ‘z’!).
Then there are all manner of crossbreeds, from so-called ‘designer dogs’ to lovable mongrels.
There’s also always the option of adopting a dog from a dog shelter for a minimal fee - for example from the Dogs Trust.
Each has its own list of positive and negative attributes, and it’s important to take plenty of time to think about what breed will fit into your lifestyle the best - for instance a smaller dog if you live in a flat, or a hypoallergenic dog if the mere mention of dog hair makes you think about sneezing.
There is even scientific research to guide you, in particular psychologist Stanley Coren’s groundbreaking book The Intelligence of Dogs.
It’s also worth noting that some breeds of dog tend to be cheerier than others - you’d never accuse a Bloodhound of being brimming with joie de vivre.
So, if you’re looking for a dog that has a naturally sunny outlook and a mischievous smile, here are 15 worth popping on your doggy shortlist.
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1. Bedlington Terrier
Several Bedlington Terriers have become 'Insta-famous' on social media due to their incredibly smiley faces. They may have been bred to hunt rats, but those Hollywood smiles are now more likely to catch the attention of cameras. | Canva/Getty Images
2. Labrador Retriever
When it comes to big silly infectious smiles, it's hard to beat those plastered across the face of a typical Labrador Retriever. They have been the UK's (and the world's) most popular dog for decades and their sunny disposition is one of the reasons why. | Canva/Getty Images
3. Golden Retriever
What is true of the Labrador Retriever also tends to be the same for their close cousin the Golden Retriever. These boisterous buddies may manage to look sad when they are begging for food, but the silly grin will be back soon. | Canva/Getty Images
4. Samoyed
Nicknamed the 'Smiling Sammie', this breed literally looks like it’s grinning most of the time. It's the Joker of the dog world, without the evil schemes. Samoyeds are affectionate, sociable, and gentle, with a love for both play and snuggles that keeps them - and their owners - content. | Canva/Getty Images