A: Blogger is not really a social blogging platform like FaceBook. We don't "add" friends to our blog.
You can "follow" a blog if you wish and you can place a follower gadget in the side bar to "allow" others to follow your blog. If you feel extra generous, you can also add a subscribe gadget in your side bar to allow your viewers to subscribe to your blog. It is listed as feed and subscription links (under gadget>>basic). All viewers need to do is click on these icons and choose the way they wish to receive feeds from your blog. This will activate an email to them every time you make a new post.