Feel free to spin in your chair while you wait Don’t forget to add a fun, relevant call-to-action button to your email. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Don’t make ‘em yawn! Keep your emails exciting and brief. Get creative with emojis in email subject lines to increase open rates! Try different email subject line styles to find what gets the most opens. Sit up straight. Avoid getting marked as spam! Only email people who have agreed to receive emails from you.