How do I use items and change my appearence with specific items?

[MrStealYourGirl24]

I really need to know.

[Peewee Musytari]

If you are on the latest viewer you need to be in advanced mode instead of basic mode, you can log out and change modes on the login screen. http://community.secondlife.com/t5/English-Knowledge-Base/Basic-mode-FAQ/ta-p/733541

In advanced mode you can right click yoru avatar and choose edit appearance. You can also drag things from your inventory onto your avatar to wear.

[Rolig Loon]

Once you get the veiwer in Advanced mode, take a look at http://community.secondlife.com/t5/English-Knowledge-Base/Editing-your-appearance/ta-p/700709  and http://community.secondlife.com/t5/English-Knowledge-Base/Avatar-attachments/ta-p/700031  to see how to change your appearance and attach prim objects to your av body.