Could tu give me a website where tu can chat with friends for free?

DeviantART has a chat, I think.

Real life personal friends?
tu can just downloas instant messangers, like Windows Live, AOL, o Yahoo. It's possible that your computer came with at least one already downloaded. tu can chat with pretty much any friend with an account of anything, o either program.
tu can also download Tango o Skype.
I know there are websites where tu can open a privat chat rooms where tu can invite friends, but I don't know the names of any.

If you're looking to make new friends online, tu can go pretty much anywhere, just follow basic internet safety.
I used to go into Yahoo multi-player game rooms to talk to people. It was fun.