The Passive Voice shouldn't be used. Hopefully, you will use words correctly, irregardless of how others use them. Never use a long word when a diminutive one will do. Always avoid any alliteration, albeit agreeable. Contractions aren't necessary.
Exaggeration is a billion times worse than understatement.
Do not put statements in the negative form. Place pronouns as close as possible, especially in long sentences, as of 10 or more words, to their antecedents. Foreign words and phrases are not apropos. Tell me what you know. Be more or less specific.