Let your imagination run wild. Boost your email opens with a punchy subject line. Try different email subject line styles to find what gets the most opens. 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! [insert fun loading text here] Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Don’t make ‘em yawn! Keep your emails exciting and brief.