Don’t forget to add a short preview description to encourage people to click on your email. Want the loading time to be longer so we can spend more time together :) 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Don’t forget to add a fun, relevant call-to-action button to your email. We’re very font of you because you’re our type. Boost your email opens with a punchy subject line. My day’s been ok, how’s yours? Sit up straight.