Don’t forget to add a fun, relevant call-to-action button to your email. Feel free to spin in your chair while you wait A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Boost your email opens with a punchy subject line. Not just a pretty interface Generating witty text... Test, test, and test again! Make sure your email looks good on all devices before you send it out. Get creative with emojis in email subject lines to increase open rates!