Summarize this article in one sentence.
People with a fever often feel cold, even though their skin is warm to the touch. If someone comes to check on you, be sure you’re under the covers or are wearing warm clothes. Tell them you’re cold and think you have a fever. Add a few subtle shivers in to make your act more convincing. You don't have to shake your entire body; a trembling jaw will go a long way. If you want to fake a fever, you can't be bouncing around like you feel good. You need to be dragging your feet and acting like you don't have any energy. For example:  When you're sitting down, lean against your arm, like you can hardly keep your head up. If you're standing, allow your body to slouch forward. You can even slump to the side and stumble a bit. Try lowering your gaze so that your eyes are partially closed. This will make them look as if they’re too heavy to fully open. Another symptom of a fever is a lack of appetite. If someone asks if they can get you anything, don’t ask for a hamburger and fries! Instead, ask for water, tea, or juice. Save the snacking for when you’re all alone, or ask for something simple, like toast or soup. If you really want to make an impact, turn down even your most favorite food. This may help people believe that you really are "sick." Cold symptoms often go hand in hand with a fever, so you could add a few sniffles, a cough, or sneeze to your act. Scatter some tissues around your bed or room to make it look more believable. Eating spicy food can also make your nose run! If you aren’t confident faking cold symptoms, complain of either a headache or a stomachache instead. Hold the part of your body that you say doesn’t feel good. If you pretend to have a stomachache, go to the bathroom and wait for longer than usual before coming back out. For instance, you could say, “My tummy really hurts" or "My head feels like it is spinning." Your act should be realistic, not dramatic and unbelievable. Add only 1 or 2 symptoms to the “fever” and don’t act as though you are dying from a mystery illness. If you take it too far, the person could either realize you’re faking or believe the act and want to take you to the doctor. For instance, you don't want to be coughing, saying you need to vomit, and moaning while you roll on the floor. That's a bit too much.
Say that you’re cold, not hot. Act like you’re tired. Pretend that you don’t have an appetite. Sniffle, sneeze, or cough to fake a cold. Fake a headache or stomachache instead of a cold. Don’t overdo it.