Don’t forget to add a short preview description to encourage people to click on your email. Keep your email subject line short and attention-grabbing. I wish I looked as good as you while waiting Don’t make ‘em yawn! Keep your emails exciting and brief. Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Try different email subject line styles to find what gets the most opens. Sit up straight. Boost your email opens with a punchy subject line.