I don't know what I'm doing, and I've just probably done something wrong

.. but should I have all those asterisks, isn't it possible to just have user1, user2, user3, user4, (where user is their screen name)
I've (I hope) attached a screen grab.
I really would appreciate if someone can give me an "idiot type" guide to how to fix this... I really AM code stupid. Thanks if anyone will help.