Test, test, and test again! Make sure your email looks good on all devices before you send it out. Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email. Generating witty text... "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates! Don’t make ‘em yawn! Keep your emails exciting and brief.