One Mississippi, two Mississippi… Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Test, test, and test again! Make sure your email looks good on all devices before you send it out. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Get creative with emojis in email subject lines to increase open rates! Want the loading time to be longer so we can spend more time together :) Sit up straight. Keep your email subject line short and attention-grabbing.