In Pokemon Go, Eevee can evolve into eight different forms, known as Eeveelutions. These include Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon, and Sylveon. The method for evolving Eevee into a specific Eeveelution varies, but some methods include using a specific nickname for Eevee before evolving it, walking Eevee as a buddy for a certain distance before evolving it, or using a special lure module. The nickname trick only works once per evolution type, so players can only use it to get each Eeveelution once.