Just tips for blogspot users who want to make every post to more seo friendly , and also a litle tweaks in main meta tags , yes it's really manually caused we use blogger template .
1- First, go to your blogger dashboard. and tick the Expand Widget Templates, and look at header section ( <head> )
2. Find this code below,
3. Change it to be like below.
<b:if cond='data:blog.pageType == "index"'>
4 - So, after you've done create a post then you need to add the code like below , (placed after the code above)
<b:if cond='data:blog.url == "YOUR POST URL"'>
<meta content='POST DESCRIPTION' name='description'/>
<meta content='KEYWORD 1, KEYWORD 2,KEYWORD 3' name='keywords'/></b:if>
That means if we have 100 post, so we need to add for these 100 meta tag codes..? , hehe, yes..so ,I suggested did only for any special article that you 'll make it become a special seo friendly post.
Don't worry that's not being spam, caused using the post url (the real url address)