In my (short) experience, the best thing you can do is offer really good content and content that isn't all over the place. Really think about what you want your blog to be about--it should have a clear and definable purpose because if it has a purpose it will soon have an audience. Is it a gardening blog? A cooking blog? A craft blog? A blog about your family? It shouldn't be all four mixed together.
Also, invite your readers to take part--ask them what they think of the subject of your post, or if you've outlined "ten ways to peace" or how to declutter your garage, at the end of the post ask your readers what they do to achieve inner peace or ask them for their decluttering tips (or whatever ...). This encourages readers to comment, and readers who comment are readers who come back.
Make it personal with graphics. Your blog should have eye appeal. That can visually separate it from the myriad of other blogs out there. It's easy, just add a header or something. But while you're making your blog personal, don't go too crazy with font colors and stuff which can make it very hard on the eyes.
Next, start browsing blogs. If you have low traffic, it's probably because people simply don't know about your blog. Search for blogs, and when you find one that kind of jives with what you're trying to create (e.g. if you blog about vegan cooking, find a vegan cooking blog or if you blog about vintage knitting, find a knitting blog), start commenting. And don't comment by saying something inane and pushy like, "If you like XYZ, you'll like my blog at XYW." It's so transparent and seems like spam. Instead, post a genuinely interesting and supportive comment--the blogger will check out your profile and the link to your blog and might start coming by. If you keep it up, eventually you'll land in someone's blogroll and that can be a great source of traffic.
My traffic on
Green Mommy--a blog I've had for about a year--comes from other bloggers who've blogrolled me, my MDC signature and google searches on the subjects I've posted on.
GL! I hope what I wrote was helpful.