Don’t forget to add a fun, relevant call-to-action button to your email. Get creative with emojis in email subject lines to increase open rates! Opening the door to unlimited creativity… One Mississippi, two Mississippi… "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Don’t forget to add a short preview description to encourage people to click on your email. Don’t make ‘em yawn! Keep your emails exciting and brief. Boost your email opens with a punchy subject line.