Keep Tweets between 120 and 160 characters so others can modify or add short notes before retweeting.
Take the time to write a proper sentence (yes, including grammar and punctuation) that fits within the character limit.
Facebook has changed over the years from primarily text-based communication to a mixture of all kinds of media. Successful posts use short, interesting “teasers” (usually 2 or 3 sentences) for context along with colorful images, short videos, and links to other good content that followers will enjoy.
LinkedIn is a business- and career-centric platform, so welcome the opportunity to offer your expertise on a subject that relates to your audience. Pretend it's a company dinner party—maintain your real, but professional, voice and don't be boring.
Pictures are the heart and soul of Instagram, but the trick is to tell a story rather than simply focus on a product.
Use block colors (“blocks” of bold, bright shades from a palette of two or more colors) to make your images stand out from the rest.