Keep your email subject line short and attention-grabbing. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Want the loading time to be longer so we can spend more time together :) Is anyone even reading this? Let your imagination run wild. Don’t make ‘em yawn! Keep your emails exciting and brief. We’re very font of you because you’re our type. Boost your email opens with a punchy subject line.