I’m worth the wait Sit up straight. Get creative with emojis in email subject lines to increase open rates! My day’s been ok, how’s yours? Want the loading time to be longer so we can spend more time together :) Test, test, and test again! Make sure your email looks good on all devices before you send it out. 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.