Boost your email opens with a punchy subject line. Opening the door to unlimited creativity… Get creative with emojis in email subject lines to increase open rates! Don’t forget to add a fun, relevant call-to-action button to your email. Try different email subject line styles to find what gets the most opens. Keep your email subject line short and attention-grabbing. Sit up straight. Don’t make ‘em yawn! Keep your emails exciting and brief.