Try different email subject line styles to find what gets the most opens. Feel free to spin in your chair while you wait Don’t make ‘em yawn! Keep your emails exciting and brief. Opening the door to unlimited creativity… Sit up straight. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Keep an eye on your email open rate to analyze and improve performance! Boost your email opens with a punchy subject line.