If you've ever caught yourself chatting to your dog, it might not have been as silly as you think.
New research suggests dogs have a much greater understanding of what we're actually saying to them than we thought.
Mark Vette has taught dogs how to fly and how to drive, and he's a big believer of the research.
"The new research really has shown dogs do actually discriminate our words, which is not what we understood. We've found that in dogs' brains, very similarly to what was found in the human brain, the left hemisphere is more involved in processing meaningful words," says lead author Dr Attila Andics.
"But there was no difference for meaningless words, and this effect was independent from intonation."
It also showed the right hemisphere of the brain was able to process intonation - just like humans.