Don’t forget to add a short preview description to encourage people to click on your email. Let your imagination run wild. Get creative with emojis in email subject lines to increase open rates! Keep an eye on your email open rate to analyze and improve performance! I’m worth the wait 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Keep your email subject line short and attention-grabbing.