To whet your appetite and keep your writing fingers limber, take a good look at the photo, or let a prompt settle in your mind. Set a timer for whatever a reasonable amount of time is for you, be that five, fifteen, or thirty minutes. Then start writing.
Write a love story about two people who come together to dance for just one night.
Write about a time you learned to do something that required great coordination.
Write a guide to the best places to go dancing in your hometown. If you don’t know of any, do some field research.