Don’t forget to add a short preview description to encourage people to click on your email. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Get creative with emojis in email subject lines to increase open rates! Opening the door to unlimited creativity… Boost your email opens with a punchy subject line. [insert fun loading text here] Generating witty text... A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.