Get creative with emojis in email subject lines to increase open rates! “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. Don’t make ‘em yawn! Keep your emails exciting and brief. Try different email subject line styles to find what gets the most opens. Feel free to spin in your chair while you wait One Mississippi, two Mississippi… Generating witty text... Keep your email subject line short and attention-grabbing.