Example: The blog's title here is "Facebook Vampire Wars - Walkthrough, Tips, Cheats and Guides" and the post title is "Add Me"
Now if you will optimize it you need to put the post title first before the blog's title. The page title should look something like this
This is much needed when you have long post titles.
To do this first log in to your account -> Layout -> Edit HTML -> Under the Edit Template Box, Find <title><data:blog.pageTitle/></title> and replace it with this code :
<b:if cond='data:blog.pageType == "item"'>
<title><data:blog.pageName/> | <data:blog.title/></title>
<b:else/>
<title><data:blog.pageTitle/></title>
</b:if>
Then click Save Template and your all good.