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