"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Boost your email opens with a punchy subject line. Don’t forget to add a short preview description to encourage people to click on your email. Not just a pretty interface Want the loading time to be longer so we can spend more time together :) Don’t make ‘em yawn! Keep your emails exciting and brief. Is anyone even reading this? Keep your email subject line short and attention-grabbing.