Get creative with emojis in email subject lines to increase open rates! Boost your email opens with a punchy subject line. Opening the door to unlimited creativity… Keep your email subject line short and attention-grabbing. One Mississippi, two Mississippi… “Everything I have designed has a crisp professional look and feel. Love this service” - Cameron 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.