Not just a pretty interface Don’t make ‘em yawn! Keep your emails exciting and brief. Try different email subject line styles to find what gets the most opens. Boost your email opens with a punchy subject line. Keep your email subject line short and attention-grabbing. Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Time to get that bread. Don’t forget to add a fun, relevant call-to-action button to your email.