This Is How You Tag Blogger Posts

I have seen 2 posts with titles stating the author doesn't know how to tag.

As a suggestion, Blog posts shouldn't be poorly formatted e-mails. You should always title your blog post with the subject of your writing, not some introductory remark. If you were writing an entire post on not knowing how to tag then the title "I don't know how to tag" might make sense - but in both cases the subject had nothing to do with the title.

Now my guess is you guys could've found the tagging feature if you looked around your UI a little bit - but anyway, heres a screenshot of this post before the content was put in. Tags can be added by placing comma-delimited terms in the "Labels for this post:" field at the bottom right.