One Mississippi, two Mississippi… Don’t forget to add a short preview description to encourage people to click on your email. Boost your email opens with a punchy subject line. My day’s been ok, how’s yours? “I enjoy the creative experience of PosterMyWall. All the features are easy and great to use. You’ve made my job easier by far.” - Angel C. Generating witty text... Try different email subject line styles to find what gets the most opens. 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email!