Boost your email opens with a punchy subject line. Get creative with emojis in email subject lines to increase open rates! Want the loading time to be longer so we can spend more time together :) I wish I looked as good as you while waiting Keep your email subject line short and attention-grabbing. My day’s been ok, how’s yours? 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Test, test, and test again! Make sure your email looks good on all devices before you send it out.