For those of you who feel like talking and got nothing else to do.. I've just found this website : https://client01.chat.mibbit.com/
Just enter any Nick, and join the Channel #GRIP
Once you're in the chat, if you want to "reserve" your nickname (so someone doesn't take it instead of you), you have to type in the chat :
/msg NickServ REGISTER password firstname.lastname@example.org
(replace password by the password you want to use, and email@example.com by an email you have)
Also, by default the client does not make any sounds. If you want to have some, you have to go to "Prefs", then "Sound" tab. Tick all the boxes, then "Save all changes"