I take my dog for a walk, or I exercise. Then I read. And if I'm really stuck, I do this writing exercise: Take out your journal or a piece of paper. Open a book, any book, close your eyes. Point to something on the page and open your eyes. If the word is a verb, adjective, or noun, write 3 pages about it. Don't edit yourself. Any genre, any style. If it's a pronoun, try again. This usually gets the juices flowing.