The most important thing is not to get symptoms mixed up. If you want to fake having a migraine, don’t complain about your stomach, and if you are faking having diarrhea, don’t start sneezing. [1] X Research source

Ponder how you felt and acted the last time you really were sick to make your act more believable.

Concealer makeup is more effective, but a little white flour can do the job in place of makeup if you have none available.

You can shiver or shake slightly to imitate symptoms of being cold, even under the blankets, as sick people often feel both hot and cold at the same time.

It is hard to fake your nose running, but you can make your eyes look like they are watering by consciously not blinking for longer than usual, which will naturally make your eyes water slightly. Do this just before talking to people for maximum effect.

Common symptoms of a migraine are dizziness, harsh reactions to light and sound, loss of balance, and massive head pain, especially in the temples and back of the head.

You can pretend to throw up making choking and guttural sounds, then pour a glass of water into the toilet. Flush it, take a few seconds to clean up, and leave the bathroom. Then, lay on the couch and avoid eating food. Throughout the night, continue to go to the bathroom quite often, but be sure to turn a fan on so people don’t get suspicious when they hear no sounds coming out of the bathroom. Use lots of air freshener to cover the “smell”, and keep running to the bathroom suddenly the next day. [9] X Research source

It is extremely easy to tell whether a sneeze is real or fake. Avoid faking a sneeze, but if you feel it would make you look more convincing, tickle the underside of your nose with a feather or something similar to trigger a sneezing reflex.

Your goal is to implant the idea that you don’t feel well into others’ heads rather than outright say, “I feel sick. " This helps to make your symptoms seem more convincing to others as you haven’t brought up the fact that you might be ill yourself.

This can be a physical indicator that you had trouble sleeping to others, when in fact you stayed up having a jolly old time to yourself. You can also use a small amount of eyeshadow to complete the effect, but be careful not to go overboard because if someone notices that you are wearing eyeshadow and aren’t actually tired, your act will be shattered.

Take a day away from social media, cancel any plans you made with your friends, and stay at home the whole day. You don’t want anybody finding out the truth about your ruse.