Try different email subject line styles to find what gets the most opens. One Mississippi, two Mississippi… Fighting off robots… Boost your email opens with a punchy subject line. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Get creative with emojis in email subject lines to increase open rates! Want the loading time to be longer so we can spend more time together :) Don’t forget to add a fun, relevant call-to-action button to your email.