If you try to join a group, but they don't want to talk to you, what should you do?
Keep your cool. Look away. Turn away. Walk away.
How can you tell that a group does not want you to join them?
Don't talk to you. Don't look at you. Don't face you.
What does a conversation hog do?
Talks all the time and does not give the other person a chance to say anything.