Ask them.. "how are you pikachu?"
actually you can't some pokemon evolve when they are happy enough,so you will understand.You can rises your pokemon's happyness by haircutting it at the UNDERGROUND,at Goldenrod City.
In certain Pokemon games a person will tell you your Pokemon's happines. Others you have to use an item on it and find out yourself.
In Nacrence city, in the building to the right of the Pokemon center. The girl with the petilil or cottonee will tell you how happy your Pokemon is.
In Pokemon Pearl, you may be able to find a Kirlia on Routes 203 and 204 using your Pokemon Radar. But be aware, they are very rare! So good luck and Happy hunting! :)
get pokesave and you should find the answer visit palspad if you like Pokemon and want to find battle & trade other trainers http://palspad.createmybb2.com/index.php
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.
If you're talking about the Poketch app, talk to the girl closet to the door in the Pokemon center of eterna city. If you just want to find out how happy your Pokemon are, talk to Dr. Footstep, somewhere on the beach east of pastoria city.
in Pokemon platinum edition giratina is the first legendary (rare) Pokemon you encounter. you can find it forst in the distortion word in its origin form at level 47 or if you K.O. or flee it will be in turn back cave (sendoff spring) at level 70 happy gaming!
Buy him a pokemon game
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.