At the end of a paragraph, I will often put a very short sentence that offers some reason for the reader to read the next paragraph. I use sentences such as:

But there’s more.

So read on.

But I didn’t stop there.

Let me explain.

Now here comes the good part.

And here’s why.

But there’s another example.

You have to read the entire thread to get to the punch line.

*Keep the copy interesting and the reader interested through the power of curiosity