Fake Breaking Your Nose

This trick is very simple, will entertain and/or scare the heck out of your siblings. Don't worry, it's painless.

Steps

Place both of your hands over your nose, with one thumb gripping an upper tooth by its lower incisor edge with your thumbnail.
Your thumb should not be seen. It should naturally be covered by the hand that is attached to it.
In one motion, move your hand with the thumb clinging to the tooth slightly out, so that the nail snaps off of the tooth's edge, producing an artificial cracking noise. Move your hand as though you were actually cracking your nose. This will not sound like a crack to you, but it will to others.

Get some uncooked pasta. This can be any type of pasta. Whether it be spaghetti, macaroni or ziti doesn't matter. However, Rotini and Farfalle pasta tend to give the most believable sound.
Carry the pasta with you to do this prank with. You will want to find something to conceal and hold it in before you attempt this trick. A pocket, plastic bag, or cup are perfect. Just remember to keep the pasta hidden, otherwise your prank will be ruined.
Place just one piece of pasta in your mouth, and then ask someone if your nose looks broken or injured. Then, with the pasta between your upper and lower teeth, bend the tip of your nose to the left or right, and at the same time, bite down on the pasta, producing a sharp cracking noise.

Find a plastic cup and place it under your armpit.
Remember to hide the plastic cup before doing this trick.
Take your thumb and your "pointing finger" to your nose and gently press it and sway it side to side.
The cup under the armpit part is simple..
While doing the 3rd step squeeze the cup under your armpit.

After the "break", scrunch your face up a little, as though you are in a bit of pain. Have a breath so it sounds like you're in shock and start to kneel over in your seat, having several more breaths along the way.
Take a few seconds to do it. Make it look like it's hard to do.
Move your other hand too, so that it really looks like you are cracking your nose.

Others may think you are a freak after this trick. Just tell them how you did it, and they will, hopefully, think you are normal.
This should not hurt at all. If it hurts your tooth, consult a dentist, because you may have cavities.