Keep your email subject line short and attention-grabbing. Boost your email opens with a punchy subject line. My day’s been ok, how’s yours? Is anyone even reading this? Feel free to spin in your chair while you 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. Get creative with emojis in email subject lines to increase open rates!