Don’t forget to add a fun, relevant call-to-action button to your email. Opening the door to unlimited creativity… [insert fun loading text here] Boost your email opens with a punchy subject line. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. We’re very font of you because you’re our type. Want the loading time to be longer so we can spend more time together :) Try different email subject line styles to find what gets the most opens.