User pages and Talk pages
Wikipedia has other types of pages beyond articles. As you start editing, you might also want to create your User page to let others get to know you a little bit.
At the top right (if you are logged in) you will see your username, which you can click to reach your User page. Links to pages that do not exist — such as your User page if you have not created it yet—are colored red, instead of the typical blue.
If you click the Create button on one of these pages, you can start from a blank page. A User page is a place to write a little bit about yourself, to give other contributors an idea of who you are and what you're interested in. You can share as much or as little as you like.
When you Save the page, your red link will turn blue!
You also have a User Talk page, where other contributors can leave messages for you. If you want to contact another contributor, you can navigate to their Talk page and leave a message at the bottom.
You should sign your messages on Talk pages; clicking the Signature button in the edit toolbar will insert four tildes ( ~~~~ ), the special wiki markup for inserting your username along with the date and time of your message.