Don’t forget to add a short preview description to encourage people to click on your email. My day’s been ok, how’s yours? Don’t make ‘em yawn! Keep your emails exciting and brief. Sit up straight. Get creative with emojis in email subject lines to increase open rates! Try different email subject line styles to find what gets the most opens. Generating witty text... A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails.