"I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Sit up straight. Keep your email subject line short and attention-grabbing. [insert fun loading text here] 51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Is anyone even reading this? Generating witty text... Don’t make ‘em yawn! Keep your emails exciting and brief.