embedding youtube videos on posts?

ya, the title says it all: How do you put youtube videos on posts?

Yes, I know that I seriously "Rack disciprineeee" in computers and stuff, so help about this newbie plz??? ToT/

[youtube][/youtube] or that you button on the post screen

there is a button for it in the posting menu when you post, its pretty easy, also if you are posting a video from your youtube page while logged in to your account remove the s from https in your website bar.