Feel free to spin in your chair while you wait Sit up straight. I’m worth the wait Don’t forget to add a fun, relevant call-to-action button to your email. I wish I looked as good as you while waiting A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Boost your email opens with a punchy subject line. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!