You have to make a free user account at Face Flow before you can have face-to-face chats or text conversations with other users.
In addition to private chat with friends, public chat rooms make it easy to meet new friends anonymously.
Tinychat is a good alternative to some of the more popular chat rooms in that there are multiple safety settings and a clear effort to keep Tinychat clean.
When multiple people are broadcasting their video, you can see all of them in a smaller thumbnail in the middle of the screen, which makes it super easy to see everyone at once.
You can also buy virtual gifts with Tinychat Coins that you can send to others in a chat room, private message individual's, text chat to the whole room, find chat rooms near your location, and open the most gifted chat rooms.
Or, if you're looking for more of a one-on-one messaging service, see this Apps for Free Video Chat on Your Computer list.