What are the three simple rules of creative best practices?

The three simple rules of creative best practices are: Keep it short & simple, Create visual cues, and Design for sound off. "Keep it short & simple" is crucial because Twitter users scroll quickly; concise messages and visuals are more likely to be consumed and understood. "Create visual cues" helps capture attention and convey meaning instantly, which is vital in a fast-paced feed. "Design for sound off" acknowledges that most Twitter videos are watched without sound initially, so visuals and text must carry the message. "Show your brand" is important for brand recognition but is not one of the three simple rules of creative best practices as defined by Twitter Flight School.