One Mississippi, two Mississippi… Get creative with emojis in email subject lines to increase open rates! Feel free to spin in your chair while you wait [insert fun loading text here] My day’s been ok, how’s yours? A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. We’re very font of you because you’re our type. Don’t forget to add a short preview description to encourage people to click on your email.