Open an image of the nose you would like to change. I chose this one:
Now duplicate the layer by pressing Command J.
Select your Rectangular Marquee tool.
Make a selection around the face area.
Go to Filer > Liquify
You will have a new window pop up with your selection in it.
Select the push tool from the left hand corner menu.
You can then adjust your settings on the right hand side. I change the brush size often but keep the pressure the same. You have to be patient and take your time pushing things around.
Now just start pushing the areas you want to change. A good tip is to keep the brush larger than the area you are pushing.
When you have achieved the shape you are looking for, hit OK.
You will have a nose job!
