"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Boost your email opens with a punchy subject line. Not just a pretty interface Keep your email subject line short and attention-grabbing. Don’t make ‘em yawn! Keep your emails exciting and brief. Sit up straight. Want the loading time to be longer so we can spend more time together :) Try different email subject line styles to find what gets the most opens.