Calm rebel faction

On Vault 13 level 2. Talk to any of the 'Upset Vault citizen's and claim that your quest for the water chip is not going well. They will mention that there is a movement to leave the Vault and if you tell them that it is not a good idea then you are told that meetings about the subject are held in Theresa's room at 5 o'clock. Go to the second room from the left of the screen on the north side of level 2 at that time. Talk Theresa out of leading people away from the vault to get 750 experience. You need high intelligence and high speech skill for this quest.