How do I make content synapses in the home tab page of my blog?

Not sure if this is the right section for me to place this but I hope it is.....

I am using Google's Blog/Blogger/Blogspot service and I notice that some blogs there have manage to place the latest posts there. They even manage to put some intro paragraphs there with the link to the main article below it.

How do they do that? What settings in my Google blog account do I need to adjust to have such a feature/effect?
If no Google Blog setting for that is present, any HTML code you suggest I do to have that appearance?

I wish I could be able to post screenshots of some sample blogs I have seen that illustrates the feature.
Nevertheless, I hope you guys here can help me with some advice...