Keep your email subject line short and attention-grabbing. Time to get that bread. Try different email subject line styles to find what gets the most opens. Feel free to spin in your chair while you wait Don’t forget to add a short preview description to encourage people to click on your email. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Don’t forget to add a fun, relevant call-to-action button to your email. Boost your email opens with a punchy subject line.