Get creative with emojis in email subject lines to increase open rates! Keep an eye on your email open rate to analyze and improve performance! Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email. I’m worth the wait 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! Boost your email opens with a punchy subject line.