Boost your email opens with a punchy subject line. Don’t forget to add a fun, relevant call-to-action button to your email. Test, test, and test again! Make sure your email looks good on all devices before you send it out. One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates! Avoid getting marked as spam! Only email people who have agreed to receive emails from you. [insert fun loading text here] Keep your email subject line short and attention-grabbing.