Most people who use the Internet in some way, are well aware of what instant messaging is. The interface for EngagerLive is the same as using instant messaging software. A popup window shows up and a chat window is where you enter and receive text.
You can enter your details and start chatting back and forth with the sales or support person. When you are waiting for an answer, you will be notified when the other person is typing. It is simple to use and very standard when it comes to IM interfaces.