You can do this very easily just by leveling it up or feed it some expensive medicine like protein iron or so on and new haircut also helps in goldenrod underground.
very carefully.
If you turn around and talk to your Pokemon you can tell what your Pokemon are doing and if they are happy.
You have to have it have high happiness. It doesn't evolve at a level.
you can go to a house in goldenrod city
evolve eevee into an umbreon by getting max happiness!
... evolves when leveld up in max happiness and morning
eevees (on any Pokemon game) evolve into umbreon or espeon with happiness. happiness at night will result in an umbreon just as happiness in the day will be an espeon. to increase happiness, walk around with your Pokemon A LOT. i think its like 256 is 1 point. they evolve at about 250.
It evolves with happiness. To improve happiness you should try the following:Level up the PokemonKeep it in your partyGive it vitamins such as protein or ironDont let your Pokemon faintGiving it a soothe bell to hold should boost happiness.
Your Pokemon's happiness can increase by doing the following:Capture it with a Luxury BallMake it hold a Soothe BellKeep your Pokemon in your party for long periods (its happiness will increase marginally every 256 steps)Take your Pokemon to get massages in Castelia City every dayUse vitamins such as Zinc and ProteinLevel up your PokemonDon't allow your Pokemon to faintRefrain from giving your Pokemon bitter medicine such as Energy Roots or Revival Herbs
Just skipping one level with max happiness evolves these Pokémon
Level it up during daytime after increasing its happiness level. I believe there's a lady you can talk to in Northeast Goldenrod City that tells you the happiness level of the first Pokemon in your party. You can easily increase a Pokemon's happiness level by using items on it, especially vitamins (Carbos, Protein, etc.) It just takes a little time.
Some Pokemon games have a specific person you can talk to that will tell your Pokemon's happiness, some Pokemon games show there happiness after giving them an item the closer they get the happier they are.