you have to mention them. For example "@theiraccountnamehere" and you can send them a message that way. Sometimes they reply, but not always.
FACEBOOK or twitter
No.
There isn't a Twitter messenger or chat room.
You are free to chat to other users on Twitter by sending them tweets or direct messages.
it is like twitter but you can speak as well as chat.
It's very simple finding a chat room in Twitter and to go to a chat room on there, just go to tweetchat.com and signup with Twitter if you don't have an account and it's free.
No. You can chat to people, but there is no chat feature like on facebook.
You could chat with her on, MileyWorld, Twitter, and MySpace :)
no a vioce recored
Yes you are free to chat with other users on Twitter.
Probably on twitter, if they have twitter. on facebook fan pages.
search him on twitter if he is there then make your twitter account