Here is a sample page. It is different from a blog article, in that it will stay in the same place, and will be displayed in the navigation menu of your site (depending on your theme). Most people start by writing an “About” page that introduces them to potential site visitors. You could write something like this:
Hello ! I’m a mechanic who aspires to be an actor, and this is my blog. I live in Bordeaux, I have a great dog named Russell, and I love vodka pineapple (and watching the rain fall).
…or something like that:
123 Machin Truc was founded in 1971, and has been offering quality stuff to the public ever since. Located in Saint-Remy-en-Bouzemont-Saint-Genest-et-Isson, 123 Machin Truc employs 2,000 people, and makes all kinds of great stuff for the Bouzemont community.
Since you’re a new WordPress user, you should go to your dashboard to delete this page, and create new pages with your own content. Have a great time!