To attract and gain readers you will have to do a good promotion of your blog such as posting on social bookmarking websites daily, participating in forums, doing offline promotion… but unique visitors are not something you should be absolutely thrilled about (I’m not saying you should ignore it). You know someone will visit your blog eventualy (with a good promotion), that’s not the problem, the real deal are returning visitors. That should be your ultimate goal, to make a first comer your regular reader.