Dogs use their different body parts to initiate their non-verbal communication

They use their tongue mostly as they use it as humans use their hands and their licking shows affection

The dogs also have adorable eyes due to extra facial muscle & help them to communicate with humans

Animal behaviour scientist Dr. Ragen McGowan told dogs used to tilt their heads when they hear a novel sound

The dogs position their ears and heads in the direction to better determine from where the sounds come from

Some studies suggest that noses and heads obstruct vision of certain breeds that's why they tilt their heads

Human usually look as a part of affection but Dr. Ragen McGowan suggest if your pet dog

consistently tilting their heads then its time to visit a veterinarian to check any medical issues

Dog shaking his tail indicates that he is happy to see his owner and this is similar to human smile