Keep your email subject line short and attention-grabbing. A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Want the loading time to be longer so we can spend more time together :) 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] Let your imagination run wild. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!