How to get traffic boost to a newly made website,what should be done immediately?

[StyleUneed]

[Abdul]

Do 2 to 5 Posts daily
Do OnPage and OnPost Page Seo
Write High Quality Articles
Share On Social Sharing Websites like Facebook, Twitter, Reddit and Google Plus

[Peter Nikolow]

To get boost ASAP you should start social activity - Facebook, Google+, Twitter, Pinterest, Stumbleupon, Reddit, etc.

[Jake]

The first 2 answers provided solid information, be aware that some SEO techniques look more suspicious for a new site, you have to go slowly at first, links from other sites are the bread and butter of search ranking, but a site getting 10 visitors a day, would naturally get far less than 10 new backlinks a day, a 1 year old site getting lots of traffic can probably get 100 new quality backlinks a day without suffering any ranking penalty.

Here's a Search Engine Optimization primer by an SEO authority, too much of the stuff taught by others is out of date or simply inaccurate.
http://www.seomoz.org/beginners-guide-to-seo

The first steps of a long term SEO plan would be to identify search keywords that you want he site to rank for in the search engines, unfortunately you now have to have a Google Adwords advertising account to access their informative keyword tool that reports search volumes for each phrase and identifies phrases on your site. (You can sign up for Adwords with a $10 deposit)

With a list of target keywords in hand, you can incorporate them in new content when the opportunity arises, without stuffing in these words in an unnatural way.

[Cedric]

Writing quality articles daily around your keywords is a great start. Google loves updated sites so just concentrate on good fresh articles and the traffic will come.It takes time so don't expect things to happen in 2 weeks because normally it won't. Good Luck!