Tell the organizer that you're coming
Log in to tell whether you go, or not.
Events organized by the club: To ease communication with the organizers of an event organised by LuxOC, register using the "going there" button on the event page. Drop a note to let others know some details. See who's going and their notes by clicking "review details".
Events organized by other clubs: Unless specified otherwise, the club does not register for events organized by others. The "going there" button serves to tell others that you're coming, for instance to ease car-sharing.
In your profile (link on top of the page) give your family or friends the right to say "going there" on your behalf.