As you all maybe don't know what thirdperson is, I will explain short. Thirdperson is when you can see your full character. First person (when you only see your hands and gun). Here comes the point. Start CSS normally and click 'create new server'. choose any random map and SPECTATE when you join. Open up the console and write 'sv_cheats 1' then you write 'bot_stop' (afftecting the bots so they won't move anywhere, only duck) and join. write in your console 'thirdperson' and you will see something pretty amazing. Leave the bot-server and join your favorite servers. It's not so easy to control your aiming when you're in this state, because you've been playing with hands and gun from the beginning. Have fun, smile and kill some noobs!