If you want to get out of something by faking a fever, you can do so by making your face warm, flushed, and sweaty. You can also warm up a thermometer for “proof” of your high temperature. If you add a few other symptoms, such as low energy and a stuffed nose, you'll be well on your way to skipping school, practice, or that boring dinner party you’ve been dreading.

NOTE: It’s usually better to just be honest about why you don’t want to go, rather than to risk getting into trouble.