Auditory Adjustment: Dogs have highly sensitive hearing, and tilting their heads may help them better locate and focus on sounds.
Curiosity: Dogs are naturally curious animals, and tilting their heads can be a way of expressing interest in something.
Communication: Dogs are excellent at reading human body language and may tilt their heads in response to our cues.
Empathy: Some experts believe that dogs tilt their heads in response to our emotional cues.
Better Vision: Tilting their heads can also help dogs get a clearer view of our faces. This is especially true for dogs with flat faces or short muzzles
Confusion: In some cases, dogs may tilt their heads when they are unsure about a situation or command.
Cuteness Factor: It's worth noting that humans often find the head-tilting behavior incredibly cute, which can reinforce the behavior in dogs.