You can see posts once you register an account. You can post once you register an account.
You need 3 posts in order to include links in your posts (though your first posts usually need approved).
You need 5 posts in order to start a private conversation with others (who allow private conversations).
Also, you're currently at 2 posts, not 3. You could post on games you like. Or comics. Or animations. Or engage in public conversation... which is what a forum is for.