Don’t forget to add a fun, relevant call-to-action button to your email. Fighting off robots… Get creative with emojis in email subject lines to increase open rates! Keep an eye on your email open rate to analyze and improve performance! Time to get that bread. Let your imagination run wild. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Try different email subject line styles to find what gets the most opens.