Increase for pr which needed 1.unique content 2.complete on-page 3.more back-link high quality website 4.social bookmarking knowing more details visit this link
1. Provide quality conent. 2. Update your website with new content. 3. Utilize back links. 4. Spread your links to social networks. 5. Guest Posting. 6. Social Bookmarking. 7.Using Commonly Searched keywords related to your website 8.Site Submitting. with these all methods you can increase traffic to your site and you can also improve your page rank.