Here is Harvard Business Review's incredible email subject line:
Get 7 Free Gifts When You Subscribe and Save Up to 80%
- Get (a verb that triggers the "what's in it for me" mentality from the outset)
- 7 (research shows people click numbered lists, as BuzzFeed will tell you)
- Free (English language's most effective buzz word)
- Gifts (another way of saying and reinforcing free, uses the power of repetition to sell)
- When (not if or should, but when to indicate certitude)
- You (personal pronoun, this is conversational language)
- Subscribe (your call to action power verb)
- and Save (second most effective buzz word)
- Up to 80% (a statistic, triggering a sense of measured credibility)
- (Bonus psychological principle: Jaden Smith Style First Letter Capitalisation Catches The Eye Like A News Headline!)
This is email list marketing at it's most thoroughly researched and deviously influential. I am richer for the experience.
If you'd like to learn more about how human psychological principles are veritably milked for their applications in clickbait, here's a clever one from Wired.com:
You’ll Be Outraged at How Easy It Was to Get You to Click on This Headline
Thanks for learning!