A playful dog is a canine that enjoys engaging in activities and behaviors that involve playing, such as chasing toys or other animals, fetching, tug-of-war, and interactive games with humans. These dogs are typically energetic, curious, and enjoy using their minds and bodies to solve problems, explore the environment around them, and engage in social interactions. They often have a friendly demeanor and are well-suited for activities that involve physical exercise or mental stimulation.