How do I chat with more than one friend at once in Facebook ?

If you’re chatting with a friend and want to add more friends to the conversation:

1. When you're chatting with a friend, click  at the top right corner of your chat window.
2. Select Add Friends to Chat... from the dropdown menu.
3. Enter the names of the friends you want to add, then click Done.

If you’re in a group, you can also chat with the entire group at once.