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You need one of the top curators to recommend you to be become a curator. All top curators have their own methods of doing that. Basically it comes down to you knowing all the guidelines and being able to do quality curating. If you can prove that, top curators would love to recommend you. Part of being a quality curator is ability to research and find answers. This post actually explains most of it. Good Luck.

thanks @geekgirl, now I understand that I am supposed to look for a post that suits the description and submit here. Off I go