Don’t make ‘em yawn! Keep your emails exciting and brief. Try different email subject line styles to find what gets the most opens. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Don’t forget to add a fun, relevant call-to-action button to your email. Boost your email opens with a punchy subject line. Sit up straight. Generating witty text... Avoid getting marked as spam! Only email people who have agreed to receive emails from you.