Actually, if your browser (ex.: Internet Explorer, Netscape, etc.) language is set to English (en), the navigation links will automatically be in English.
If, for any reason, you do not wish to set English as the primary language in a given browser, just create a user account (it’s free and can be created directly online) to activate the English navigation. Of course, in your account, you need to select English as your preferred language.
When opening a session, you can click the box ‘Keep session open on this computer’: this option means you will not need to enter your name/password everytime. But anyone using that computer will have access to your account (so this option is not for public computers or an “Internet cafe-restaurant”).