use the Pokemon alot if that doesn't work give it an xp share helmet and get its level up a lot and then use the Pokemon a little bit after u use the xp share.
There are many ways to give it happiness. One basic way is to level the pokemon up. Then you can feed it proteins. You can also give it massages, and if you get the footprint ribbon on the pokemon it signifies max happiness
by training it as your main pokemon and giving it the soothe bell
Give it happiness
haha
Increase your Pokemon's happiness, the only reason they won't give it to you is that you're not familiar with it.
you give it lots of calcium and zinc etc.
you have to give it poven or poke-blocks and train it
you have to give it maxed out happiness
if your Pokemon level ups, its happiness will increase automatically. but if you give your Pokemon a soothe bell, its happiness will increase faster, and it will evolve faster (by certain Pokemon). also return will do more damage
No the happiness only lowers if you give the Pokemon herbal medicine (Revival Herb, Energy Root, Heal Powder, and Energypowder) or if the Pokemon faints in battle.
Happiness evolves certain Pokemon like chansey. To get happines massage your Pokemon in veilstone and give it heaps of lemonade. Then grow it some levels.
You have to battle with not just switch it out and then use a stronger pokemon :)