Keep your email subject line short and attention-grabbing. Get creative with emojis in email subject lines to increase open rates! Don’t forget to add a fun, relevant call-to-action button to your email. Fighting off robots… Don’t forget to add a short preview description to encourage people to click on your email. Feel free to spin in your chair while you wait "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Boost your email opens with a punchy subject line.