Don’t forget to add a short preview description to encourage people to click on your email. Try different email subject line styles to find what gets the most opens. One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates! Fighting off robots… "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Sit up straight. Boost your email opens with a punchy subject line.