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This one thing can increase email opens by 10%+
Posted on January 27th, 2019.There's a simple technique I use in a number of my emails that regularly gets my open rates to bump up by 10% or usually more.
You can't overuse it of course. But in the right place, it's very powerful.
The technique is to use a “demonstrative pronoun” in the subject line.
In other words, a word like “this”, “that”, “these” or “those”.
“Are you making this fatal marketing mistake?”
“Do you make these mistakes in English?”
“This one thing can increase email open rates by 10%+”
Using a demonstrative pronoun in the subject line (or the headline of an advert like the famous “Do you make these mistakes in English?”) allows you to state a benefit or problem and imply a very specific answer. But without stating what that answer is.
So it builds a lot of curiosity.
You want to know what “these mistakes in English” are and whether you're making them. You want to know what the “this one thing” is that can increase email open rates by 10%+.
You'll see similar techniques used in journalism a lot by publications that rely on clicks through to their website.
Look at the most read stories on a news portal (I use newsnow.co.uk for the sports coverage) and you'll see headlines like:
- “Shearer gushes over three Newcastle players on Twitter after stunning comeback” [which three players?]
- “It's his own fault really – Allardyce blames Everton man for Newcastle loss” [which player does he blame?]
- “This is how Man City could be punished for Financial Fair Play breaches” [how?]
- What Newcastle will promise Rafa Benitez to incentivise him to sign new contract [what will they promise him?]
In each case the headline tells you something interesting but leaves out a key piece of information. So out of curiosity, you click through to the website to find out.
It's powerful stuff, but easy to use.
You can often get to a demonstrative pronoun just by tweaking what you want to say. For example…
“How to improve sales conversions” –> “These 3 techniques will double your sales conversions”
“5 techniques for increasing leadership effectiveness” –> “Are you making these 5 critical leadership mistakes?”
Small changes, yet they have a big effect on opens, clicks and signups – wherever you use it.

