Keep your email subject line short and attention-grabbing. Don’t forget to add a short preview description to encourage people to click on your email. Try different email subject line styles to find what gets the most opens. Time to get that bread. Get creative with emojis in email subject lines to increase open rates! Sit up straight. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Test, test, and test again! Make sure your email looks good on all devices before you send it out.