Get creative with emojis in email subject lines to increase open rates! Opening the door to unlimited creativity… "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Don’t make ‘em yawn! Keep your emails exciting and brief. Keep your email subject line short and attention-grabbing. Is anyone even reading this? Don’t forget to add a short preview description to encourage people to click on your email. Boost your email opens with a punchy subject line.