You can view Stats for your site via the Stats tab on the main home page of the account. You can view the most visited pages, the search terms that were used to find the site and the sites which site referred the most traffic to the site.
Pageviews: The number of pages visitors viewed on a given day. One visitor may visit three, ten, twenty, however many pages.
Unique Visitors: The number of individual visitors who came to the site. The unique visitors number should always be smaller than the pageviews number simply because one person can visit multiple pages and thereby generate a number of different pageviews.
Top Pages: The pages with the most visits. The page called "/" is the home page and it should get the most visits usually.
Search Terms: This shows which search terms visitors have entered in Google, Bing and Yahoo to find your site. The more search terms you see, the better ranked your site likely is in on the search engines.
Referring Sites: If a visitor clicked a link on another site to reach your site then they have been "referred" to your own site by this other site. The more in-bound links you have pointing to your site, the better your search rank will likely end up being.