Keep your email subject line short and attention-grabbing. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula [insert fun loading text here] Don’t make ‘em yawn! Keep your emails exciting and brief. Let your imagination run wild. One Mississippi, two Mississippi… Test, test, and test again! Make sure your email looks good on all devices before you send it out. Try different email subject line styles to find what gets the most opens.