Remember: You're speaking on behalf of one of the world's top universities! Is your post error free,聽both factually and grammatically? Proof and fact-check and proof again before you post. What you post can be shared instantly and live online indefinitely.聽If you're at all hesitant, get a second opinion. It's easier to do it right the first time than to go back and undo. (For certain platforms, especially on Twitter where news travels quickly, it's better to clarify rather than delete, replying to the original incorrect information. That way, others who have retweeted will see the clarification.)
Next:
