Quit is designed to quit the game if you are tired. Options is designed to configurate game options: nickname, mouse sensitivity, graphics, keyboard settings (binds) or audio settings. But, we recommend to put your favourite servers to Favourite tab (by clicking the server with right mouse button and selecting 'add to favourites or just click 'add current server' when you are online). Also you may find specate (HLTV) servers or some server you were playing few days ago (History tab).
You can find a server of your friend through the local network (LAN tab) or Internet. Find Servers designed to play game online (MultiPlayer mode). New Game designed to play game in offline mode (with bots) or LAN mode. In the menu of the game one may see New Game, Find Servers, Options and Quit buttons. Counter Strike 1.6 Game Menu You can download this version of the game using direct link or Torrent here.