Question: how to evolve eevee into umbreon in pokemon liquid crystal?
Answer: Speak to the lady inside with Eevee as your party leader, and she will let you know how happy your Pokemon is. If she says your Eevee "must love you a lot," it is at max happiness. Have your Eevee battle against nearby Pokemon or trainers. The next time it levels up, it will evolve into the psychic Pokemon Espeon.