This patient appears to be hallucinating, as he is staring at the ceiling and muttering, but this needs to be confirmed as this finding will, in part, guide treatment. Therefore, the nurse should directly ask the patient who he is talking to in order to confirm the patient is actually hallucinating. Although sitting quietly next to the patient, creating an auditory distraction, or providing a minimally stimulating environment are specific therapeutic techniques used in the management of psychiatric disorders, none of them are of any diagnostic value in this context.