You don't need to write a 400-word caption on every photo you post on Instagram or underneath every video you share on Facebook. Sometimes the posts are self-explanatory. However, you can, and you should write something enticing. Here are some tips for you to create good copy for social media: 1. Define Your Brand Persona 2. Consider the Differences Between Each Platform 3. Keep it Short and Simple 4. Give Value 5. Add a Call to Action