"I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Boost your email opens with a punchy subject line. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Don’t forget to add a short preview description to encourage people to click on your email. Let your imagination run wild. Try different email subject line styles to find what gets the most opens. Fighting off robots… Don’t forget to add a fun, relevant call-to-action button to your email.