1. Saliva can show “excitement"
    True. Saliva can show the excitement you feel when you run and play.
     

  2. Saliva can show “frustration”
    True. Saliva can show the frustration you feel when there is a math problem you don’t understand.
     
  3. Saliva can show “attention-focus”
    True. Saliva can show the attention-focus you use to learn in class.

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