Optimize images by mentioning the ALT Text and a short description of the image in your blog post to rank better in Google.
Respond when someone likes or comments on your post. Visit their blog and send your comment love. Courtesy brings in more readers and friends.
Image speak - A lot of bloggers tend to ignore this, but the images on your blog speak a lot for what you write. Use good quality images and make sure they express your written stuff in utmost simplicity yet precision.