Research has shown that dogs like the silly, high-pitched voice their owners use to talk to them.
Using "dog-speak" is important in building a bond between a dog and its owner, scientists from the University of York have found.
During a series of tests, dogs were spoken to in a high-pitched voice and again in a normal adult voice.
Researchers then monitored which speaker the dogs responded to and wanted to interact with.
Ph.D. student Alex Benjamin said it seemed dogs were more likely to favor the speaker who used a high pitch.
The researchers wanted to test whether speaking to dogs in "dog-directed" speech was useful to the animals, or whether humans did this simply because they view pets in the same way as babies.
"Dog-directed" speech involves speaking in a high-pitched voice with exaggerated emotion - in a similar way that adults often talk to small children.