Don’t forget to add a short preview description to encourage people to click on your email. Sit up straight. Want the loading time to be longer so we can spend more time together :) Not just a pretty interface Get creative with emojis in email subject lines to increase open rates! Don’t forget to add a fun, relevant call-to-action button to your email. Feel free to spin in your chair while you wait 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!