Liberty Caps is also known as Psilocybe semilanceata
For a good effect you should take the Liberty Caps on an empty stomach. You can chew the mushrooms and swallow them afterwards. The longer you chew, the better the psychoactive substances are absorbed by your body. Sadly it doesn’t taste too well.
For this reason you can also choose to make mushroom tea. Cut them into little pieces and steep them in hot water. It is important that the water does not boil, because this breaks down the psilocybin. You could put the teapot on a hot plate to let it steep as slowly as possible. Drink the tea, including the bits of mushroom.
If you add some lemon juice to the mushroom tea, the psilocybin in the water is converted into psilocin. As stated above, it is psilocin which is responsible for the psychedelic effect. Lemon juice therefore ensures that your trip starts faster. As an additional advantage you will suffer less stomach aches.