Chatting with friends Twitter can be very stimulating, but I like to think of a neat screename before I sign up for such a service. So what are your ideas of a good screename? I used to be so stumped when it came to creating a good screename, but then I finally decided on a good one. Before joining Twitter you should spend some time creating a fun avatar for your new screename. Have fun chatting online using Twitter, which I regard as the modern form of a chatroom.