The term 'Sign of Nervousness' refers to physical symptoms that can be observed when a person is feeling anxious. These signs include PACING, which is the act of walking back and forth in an agitated manner; TREMOR, which is an involuntary shaking of the body; TIC, which is a sudden, repetitive movement of a muscle; and sweaty palms, which is a condition where the palms of the hands become moist due to excessive sweating.