Well, just be careful because Bitcoin is not designed to guarantee anonimity. You might be far less covert than you think.
So far bitcoin never reveal any info about its user to anybody because you don't need to register anything, user data leaked only when using bitcoin on other non bitcoin payment merchant.
It is super easy because you just download your wallet then put the addrss of your wallet to public, if you use paypal for example then you must first register at paypal with your identity data.