I hope you will find it useful and easy to navigate your way around.
But first! Please sign in and change your username, so that everybody knows who you are.
To change your name:
click on the little green arrow in the top right corner of the screen, right there where you could log in. Please click on Profile.
Now that you are on a new page, please look for "Edit Profile" on the right side. Once you click this you will be able to change the name that is shown when you comment on a post or when you are signed in.