Simple, all you have to do is keep the certain Pokemon as the head of the party (not really necessary, but it helps) and give it items such as protein and calcium. You can also battle with making sure that it doesn't faint. After a while, its love will grow and it will evolve. Just keep it with you for a long time while pampering it and it will evolve at some point.
That Pokemon is Rhydon. Give it to him and trade him, and he will evolve into Rhypherior.
love
chansey evolves by love
Give it lots of love and care and let it travel next to a powerful pokemon.
Anorith evolves at level 32. Anorith does not evolve by friendship or love, like other Pokemon do. Anorith will evolve into an Armaldo.
answer riolu doesnt evolve by level it evolves by care and love
none, make it love you a bunch
Use a moon stone. Also, I LOVE MUNNA!
Every Pokemon does not evolve. The legends, and unowns don't evolve. Only 90% of the Pokemon evolve.
Cleffa is one of those annoying Pokemon without an evolution level. The only way to evolve it is with maximum love.
pokemon do not evolve on pokemon colosseum
The Pokemon Illumise does not evolve.