Which of the following is NOT a common sign of a heat stroke?

In cases of heat stroke, one of the distinguishing characteristics is that the individual often presents with hot and dry skin, rather than excessive sweating. This is significant because, in heat stroke, the body's temperature regulation mechanism fails, leading to an inability to sweat, which differs from other heat-related illnesses like heat exhaustion, where excessive sweating is common. Therefore, the correct answer highlights that excessive sweating is not a common sign of heat stroke, while high body temperature, confusion or an altered mental state, and hot and dry skin are all signs that are typically observed in such cases.