Use psychology to improve your copywriting

The psychological effects:
Pratfall Effect: Your likeability will increase if you’re not perfect.
Novelty Effect: The event of a change affects performance rather than the change itself.
Priming Effect: Words subconsciously prime our subsequent behaviors.
Focusing Effect: We rely on the most prominent information in our memory to make decisions.
But You Are Free Effect: We're more likely to do something if we're told we don't have to do it.
Primacy/Recency Effect: We remember the first and last items in a sequence.
Cognitive Fluency Effect: Easy to read is translated as more true and easier to do.
Illusory Truth Effect: Repetition leads to belief.
Open Loop Effect: Our brains chase after closure.

The copywriting tips:
Talk about your own mistakes.
Apologize when you've made one.
Refresh copy and creative regularly.
Change up your blog posts.
Be careful with A/B testing.
Use emotional words before you get to the ask.
Tell readers what to expect in your intros.
Strategically place information before your CTA.
Make the core value proposition large and obvious.
Use ”but you are free” directly.
Say “but you are free” without actually saying it.
Convey clear value in your introductions and conclusions.
Bullet out features strategically.
Write powerful email subject lines and closing statements.
Be familiar, not fancy.
Write in conversational style.
Be super blunt.
Present information clearly.
Describe easy processes easily.
Use easy-to-read fonts.
Use repetition.
Be consistent
Use “one” in your titles.
Include your favorite.
Take the "find out" approach.
Add open loops to blog post intros.

https://www.wordstream.com/blog/ws/2021/09/01/psychology-copywriting-tips-examples