Eevee questions on Pokemon Soul Silver?

train your Eevee and have it lead your party in battle ,also you could take it to someone that gives you something or does something tomakee your pokemon happier,and in order to get more Eevees all u have to do is put a female Eevee with a ditto or another male pokemon that is in the same egg group as Eevee,and then they will breed,and a quicker way to make them breed is riding your bike back and fourth long distanceridingng your bike also makes it quicker to hatch egss