Know what attention lines in business letter is and how to place them effectively. Read more to know about the same to leverage benefits.Be outgoing: Grab the hiring manager's attention using a personal contact, a compliment, or specific company knowledge as you express your interest in the job. ATTN stands for Attention Required. We'll be focused on how to write letters that criticize or praise your MoC for a policy position. That's just one type of letter. A good cover letter puts your résumé in context and persuades the prospective employer that you are a good match for the position in question.