Sincerely- A Quackity X Reader

Mrs T clapped her hands, eyebrows raised and a smile curving at her lips. "Exactly y/n, you start with your heading, you say dear and then the person you are talking to, and then put a comma. Then you put a space under it and say what you want to say. Then you say from, comma, and then your name. But..." Mrs T.'s eyes...