What is an example of positive diction?

The little dog had a shiny black coat and thick fur. It always was happy and wagging its tail. It would go run around outside and come back in panting happily. The dog had a greasy black coat with tangled, unorganized fur. Its tail wagged too hard and always knocked things over. It never seemed to stop panting and drooling all over the house. The diction of these two paragraphs gave different moods, even though they were written about the same dog. The first paragraph uses a positive diction and the second paragraph uses a more negative one. It is important to use different kinds of diction to convey the mood of a text.

Positive and negative