If your popular at school, I need your help!?

I am moving schools this summer and I want to go from lame to popular. I need advice. Were should I shop? What are the rules of being popular like never let anyone see you cry, ect. Please don't answer if your going to tell me "Oh it doesn't matter!" Because it does to me. So please just help. Whats going to be in style? Is it cool or lame to have a camera shown in your profile picture on facebook. Thanks!! (: