I just joined and noticed that my avatar is a girl. It needs to be a guy. How do I change it? Also I did not choose a wardrobe yet because they are all girl ones. What should I do to get a boy avatar?

just go to wardrobe and click avatar and you can pick gender and reset face things like eyes or nose if you want. Many clothes are drawn for BOTH male and female HAs so no matter what set you pick it'll look how it should for that gender to wear it, mainly flat chest for boys and boobs for girls

Thanks so much for the help Rydia. :D