Get creative with emojis in email subject lines to increase open rates! We’re very font of you because you’re our type. [insert fun loading text here] 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Boost your email opens with a punchy subject line. Not just a pretty interface Time to get that bread. Don’t forget to add a fun, relevant call-to-action button to your email.