Probably that they are depressed and want to d!e. If you know anyone like that, you should probably talk to them, comfort hem, and try your best to support them. If it's you yourself you should probably go to therapy or talk to someone to let out all of your feelings, because then you will feel cramped and stressed. You could try to write in a book or diary, which is also helpful.
the advantages are that you will have people on your side and help you eliminate the other tributes. But the disadvantage are that when its just you pack you will have to turn on each other witch is no fun