You can not, you have to go to bill's house in goldenrod city to get a eevee.
You can't get a wild Eevee. You can, however, receive one from Bill.
You can get an Eevee from Bill in Goldenrod city.
You can find eevee in Celadon City in Kanto as a Game Corner prize.
The only place to find an Eevee is at Bill's house or maybe at the GTS.
You need a Eevee and a water stone use the water stone on eevee! Simples!
you can find a leaf stone in viridian forest in kanto in heartgold
In Goldenrod City, there is a house where the PC programmer Bill lives. He gives you an Eevee.
You can find it from the Trophy Garden.
Eevee is not found in the wild, but it is in the game. You can get one from Bill. His house is somewhere in Goldenrod City.
Eevee can not evolve into porygon.
You receive it from Bill in his house in Goldenrod City after talking to him in Ecruteak City
You get it from bill in goldenrod city after you find him in the Pokemon center in the next town.thanks