Get creative with emojis in email subject lines to increase open rates! 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Generating witty text... I’m worth the wait Let your imagination run wild. Don’t forget to add a short preview description to encourage people to click on your email. [insert fun loading text here] Test, test, and test again! Make sure your email looks good on all devices before you send it out.