Not just a pretty interface Test, test, and test again! Make sure your email looks good on all devices before you send it out. Want the loading time to be longer so we can spend more time together :) Keep an eye on your email open rate to analyze and improve performance! Get creative with emojis in email subject lines to increase open rates! Sit up straight. Don’t forget to add a short preview description to encourage people to click on your email. Let your imagination run wild.