Not just a pretty interface Don’t forget to add a fun, relevant call-to-action button to your email. Get creative with emojis in email subject lines to increase open rates! Generating witty text... Try different email subject line styles to find what gets the most opens. Let your imagination run wild. Don’t make ‘em yawn! Keep your emails exciting and brief. Test, test, and test again! Make sure your email looks good on all devices before you send it out.