Don’t forget to add a fun, relevant call-to-action button to your email. Try different email subject line styles to find what gets the most opens. We’re very font of you because you’re our type. 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! Keep your email subject line short and attention-grabbing. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Is anyone even reading this?