A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. One Mississippi, two Mississippi… Generating witty text... Don’t forget to add a fun, relevant call-to-action button to your email. Boost your email opens with a punchy subject line. Get creative with emojis in email subject lines to increase open rates! [insert fun loading text here] Keep your email subject line short and attention-grabbing.