Simple, press F1 and if it's a Live Message just press the reply button.
Clicking this will reply to all messages with whatever you typed.
yes
Request and Reply
you can't. you can reply happy or unhappy to messages via the computer though.
Reece Mastin most of the time reply via twitter
no you dont need to unless you have a question
Yes, but they can't write messages or reply.
do not reply back. save the messages and report them.
If someone is sending you messages on Facebook and you cannot reply, the reason is because the person has that certain settings on their account so that only people on their friends' list can message them.
there is no halo zero 2 there's halo zero halo PC (1) halo for vista (2) and halo 3
You go to your messages, open the one you want to reply to and then type the message you want to send to them. Then you press 'ok' and it will have sent.
cry