So there are many tricks you can increase adsense impressions but these tricks may be dangerous for your adsense account. For an example, if you use traffic exchange programs, then your adsense may get banned as they are against privacy policy. So you need to increase traffic to your site that has adsense accounts naturally.
So you need to get traffic naturally as like using Facebook and also you may make your friends to browse your blog so that your adsense impressions can increase. Even you can write good posts and get visitors come to your site. You can even get visitors by posting in Forums and increase impressions and easiest of all leave messages in Blog chat box with your link and get visitors.