by getting a virus
when you have a virus your body usually heats up to kill it =]
i watched national geographics and thats what ur body does
I dont know that you can really. You can rig the thermometer to look like you have a temp by putting it on a light bulb or under hot water. but dont make it obscene temp. To make your face feel like you are hot put a hot cloth across it then dry the water.
why do you want the fever?
a real fever = you need to catch it from another person.
a fake one=many ways, one would be use the blow dryer or heat up some water and put ur face close to it.
you stand outside in the cold until you feel weak, lowering your immune system, then find someone with a fever and hang out with them, you'll have a greater chance of catching the fever.
Read a real racy novel. It will only go up to about 99 though and will not last more than an hour.
You must be about 13 years old, not wanting to go to school tomorrow.