My day’s been ok, how’s yours? "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! Let your imagination run wild. Keep your email subject line short and attention-grabbing. Fighting off robots… Don’t forget to add a fun, relevant call-to-action button to your email. Test, test, and test again! Make sure your email looks good on all devices before you send it out.