Successfully faking a fever requires careful attention to detail and an understanding of the symptoms associated with elevated body temperature. One common method is to artificially raise the body temperature using external sources such as a hot water bottle or a heating pad. By strategically placing these heat sources against the skin, individuals can simulate the warmth associated with a fever.

Additionally, altering the appearance of the skin can further enhance the illusion. Rubbing the skin to create redness or applying a heating balm can mimic the flushed complexion often seen during fevers. However, it's essential to be cautious not to cause any actual harm to the skin in the process.

Feigning other symptoms commonly associated with fevers, such as fatigue, headache, and body aches, can also help sell the ruse. By adopting a lethargic demeanor and complaining of discomfort, individuals can further convince others of their supposed illness.