Ok here you go. If it has a liner in it cut that thing out. Turn it inside out and take a single blade disposable shaving razor to shave it. Switch them when it gets dull. Start with the inside so you can see how it will look when done and if it doesn't work out right the first time no one will see it. It helps to find something round to stretch it over tightly like a coffee can or something similar. Get it tight around this and start to shave it using short strokes. Work the razor in the same direction all the way across the beret. Be careful around the headband because it will nick and cut easily if it is leather. Also be careful if the seam where it is sewn together. You might actually cut the stitching.
After you are done with the inside and you have a good idea of how to work the razor, turn it right side out and start with the stiffener area. If you do not have a flash on it it is much easier. If you do, get as close to it as you can. After you have shaved the stiffener area, use the coffee can again and repeat what you did on the inside. Be careful as this part will show, and nothing makes you look like a rookie more than a bunch of 'beret scars' from the razor.
When you are done and you have the flash sewn on look at the stiffener. Cut the part where the beret drapes over the head right next to the flash, on the the other side leave it intact. Then like everyone else said wet it completely and put it on and form it to your head. Hot water works best for some reason, then just let the thing dry on your head. Take your time and again if it is a leather band, it will be stiff so tie it loosely with some excess at first until it breaks in. Then later tie a nonslip knot and cut off the excess and burn the ends.
It will take some time and probably a couple shavings and wettings to get it just how you want it. Hope this helps,
Steve
hug.gifALL OK JUMPMASTER!!