One Mississippi, two Mississippi… Don’t forget to add a fun, relevant call-to-action button to your email. Sit up straight. Get creative with emojis in email subject lines to increase open rates! Generating witty text... Fighting off robots… Boost your email opens with a punchy subject line. “If you are a business owner with a limited budget, this is just what you need to produce beautiful flyers, menus, posters, emails, and more.” - Ahmad A.