You can make it happy by treating it to spa.
You can make it happy by training it a whole lot. usually it takes a Pokemon 20-30 LVs to be fully happy.
you have to run around with it lots. also battle with it. those two things make Pokemon happy.
Yes but it shouldn't make you happy.
Just use them alot in battle and give them good berries and that should make them happy
The way I do it is by giving the Pokemon you want happy a sooth bell, this will make the Pokemon grow happy fast. Then every day give the Pokemon a message at Veliston (spelling?). Also make sure that it's the first Pokemon in your party and never put in the PC boxes.
use sunny day
by making it happy u can check how happy it is in icirrus city at the fan club
yes
train the Pokemon's give it a puffin or a rear candyto make it envolve
mabye pokemon amie
No. Pokemon Fans will be extremely happy if it is, but no. Even though I am a Pokemon fan, I can image myself getting eaten by a Charizard or a Garchomp... Anyway, so yeah. It is not real.