"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Try different email subject line styles to find what gets the most opens. Sit up straight. Avoid getting marked as spam! Only email people who have agreed to receive emails from you. Don’t make ‘em yawn! Keep your emails exciting and brief. My day’s been ok, how’s yours? Is anyone even reading this? Keep your email subject line short and attention-grabbing.