For effective short-form videos on Facebook, prioritize an immediate hook within the first 1-3 seconds to capture attention instantly. It's crucial to keep content concise and engaging, often under 30 seconds, utilizing dynamic visuals and fast cuts. Always optimize for sound-off viewing with compelling visuals and on-screen text or captions, as many users scroll silently. Furthermore, ensure your videos are native to the platform, meaning they are shot in vertical format (9:16) and feel authentic to Facebook's environment. Finally, always include a clear call to action, guiding viewers on the next step, whether it's to visit a link, follow your page, or comment for better engagement.