Don’t forget to add a short preview description to encourage people to click on your email. Keep your email subject line short and attention-grabbing. Feel free to spin in your chair while you wait [insert fun loading text here] Want the loading time to be longer so we can spend more time together :) One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates! 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!