The best method to attract traffic to your blog is to write good content regularly and share on all social media sites at a time when your audience is online.
Grammar - Depending on the language you use, blogging just makes it imperative that you are reasonably good with your grammar skills and proficiency if not a master. Remember your audience is a mix of both; the ones who are experts and the ones who are not.
Blogging is all about sharing; no matters if the blog post is written by you or not. Keep spreading the good vibes for your readers.