Get creative with emojis in email subject lines to increase open rates! Boost your email opens with a punchy subject line. We’re very font of you because you’re our type. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Generating witty text... Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email. Try different email subject line styles to find what gets the most opens.