speaking your language without a yellow, leech-like, odd thing
Good! Looks like you're interested :-)
If you want to start translating for Plurk all you have to do is to send a mail to plurk-translations@googlegroups.com with the following details:
After we receive and approve your application, we'll send you a mail with all the instructions, the rules and a link to the translator control panel.
Happy translating!