Build A Better Blog Day 7
There is no better feeling than to be acknowledged by the person who's blog you've commented on. Blogs are interactive and I know from past experience the disappointment when I comment and there is no response.
Take the time to ask your readers to comment. Ask them what they think. Ask for opposing or supporting views. But once they have commented take the time to respond back, or at the very least write a response that may cover multiple comments. If you get so lucky that you have a lot of comments on a post, at least respond to some of them.
New blogs tend don't always get comments until you have been posting a while or you are blogging a niche that may attract a large target audience. Don't worry too much about the number of comments, just focus on good content and the comments will follow.
ProBlogger's day seven post: Plan Your Next Week's Posting Schedule