how to show certain posts on a page?

Hello whocky,

You can use below plugins for your purpose. Which provides you short code to display posts on your page, posts & custom post pages.

1) Latest Post Shortcode
2) Display Posts Shortcode

Hope this will helps you.

will this work for just chosen posts that i make? or will it show everything we post?

Hello whocky,

It depends on the critearea you choose when you set the Shortcode. Just go throgh the documentation and play little bit with plugin and you will got the result what you want.

Thanks!