can anyone teach how to pin the crest on the beret, how to
season etc?
First, force the crest on the inner part of the beret to create
two small dents.
Second, use something sharp to poke through the dents to create
two holes.
Third, put the crest in the front, with its two points through
the two holes you made, and you just need to put your pin through
in the inner part of the beret.
As for seasoning, you could fold it in half to create the "fold"
which you need, and place it under somewhere heavy such as your
mattress. If you have no idea how to create the "fold", ask your
seniors for help.