Sit up straight. Don’t forget to add a fun, relevant call-to-action button to your email. Want the loading time to be longer so we can spend more time together :) Keep your email subject line short and attention-grabbing. Try different email subject line styles to find what gets the most opens. My day’s been ok, how’s yours? 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.