Try different email subject line styles to find what gets the most opens. Don’t make ‘em yawn! Keep your emails exciting and brief. 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! Let your imagination run wild. Sit up straight. "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Keep your email subject line short and attention-grabbing.