Any place you can up your privacy setting so that search engines can't find you, do so. Anywhere you can delete your real name, or at least your last name, do so. Anything you don't use anymore, delete.

I have no idea why Nano comes up. Mine doesn't. If you want other people to be careful about mentioning you, then tell them, or post a disclaimer. First and foremost people will search for your real name. The key is to make sure that something you WANT people to see comes up in the first page of Google. They are less likely to search further, if something is easy for them to see.