Don’t forget to add a short preview description to encourage people to click on your email. Fighting off robots… Sit up straight. 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! A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Feel free to spin in your chair while you wait Don’t make ‘em yawn! Keep your emails exciting and brief.