Start by ripping out the heart of the subject with a quick jab.
Squeeze out de extra blood.
Smash it with a strong punch.
Cut it to small pieces with a sharp knife.
Place the pieces in a liquifier and press on.
After 5 minutes, add concentrated sulphuric acid.
Wait another 5 minutes and add alcohol and a burning match.
Collect the remains and placed them in the original place, in the chest of the subject.
Finalize by saying: "I still think of you as a very good friend".
If the procedure worked, the subject should now smile and say something like: "that's OK, it's not your fault, you don't have to feel bad about this".
Congratulations, you are now A WOMAN.
P.S. Este post e dedicado ao meu amigo Miguel (que vai ler mas nao vai comentar) e as suas "amigas"...