Don’t forget to add a short preview description to encourage people to click on your email. Sit up straight. “There are so many beautiful designs to choose from. I feel like a professional when I use it.” - Dr. Oberson Generating witty text... Keep your email subject line short and attention-grabbing. Boost your email opens with a punchy subject line. I wish I looked as good as you while waiting 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!