Keep your email subject line short and attention-grabbing. Boost your email opens with a punchy subject line. Not just a pretty interface Get creative with emojis in email subject lines to increase open rates! Keep an eye on your email open rate to analyze and improve performance! Don’t make ‘em yawn! Keep your emails exciting and brief. Is anyone even reading this? Avoid getting marked as spam! Only email people who have agreed to receive emails from you.