Opening the door to unlimited creativity… "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! Don’t forget to add a short preview description to encourage people to click on your email. Sit up straight. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Want the loading time to be longer so we can spend more time together :) Let your imagination run wild.