I gained 4k followers after one week of posting.
I got bored and quit.
Here's my method.

There is a hook, then the meat, then the Call to action.

Suppose I'm selling a software to help bloggers get mentions from other blogs.

First hook is something that sounds like, "This lets bloggers blow up.

The meat is 1-2 sentances on why its awesome, focus on benefits

"All a blogger has to do is click this button (Show it)
and get the emails to pitch their content for them to link it

"They can save up to 500$ if they DIY it with the tool

Call to action for the first 10k users can be, "follow me"
"Follow me for more"