You are writing an email to a potentional employer about a job opportunity. What can you do to make sure the email reflects your intelligence?

You want to use proper etiquette and be polite, do not call them by their first name and always refer to them as Mr., or Mrs. Use an extended vocabulary and do not talk about yourself. If you have proper grammar, depending on the job, that can be seen as intelligence. And always use an appropriate closing that is respectful. Such as, Sincerely, John Doe.