Don’t forget to add a fun, relevant call-to-action button to your email. Want the loading time to be longer so we can spend more time together :) Boost your email opens with a punchy subject line. I wish I looked as good as you while waiting Don’t forget to add a short preview description to encourage people to click on your email. Keep an eye on your email open rate to analyze and improve performance! Is anyone even reading this? Keep your email subject line short and attention-grabbing.