Either talk to Dr. footstep (in the house on the beach next to Pastoria City) or use the Poketch app Friendship Checker (talk to someone in Eterna City Pokemon center and they'll give you one).
Dr. Footstep will give a statement about the happiness of the first Pokemon in your party. If your Pokemon likes you a lot, he will award it a 'Footstep Ribbon'.
The Friendship Checker shows all Pokemon in your party floating around. To check happiness, hold the stylus on the Pokemon you want to check. Its happiness is expressed through the number of hearts above it:
If you place the styler on the touch screen and the Pokemon repels away from it it wants nothing to do with you. LOL. It pretty much hates your guts at the moment.
No hearts but still slowly comes to your styler - doesn't really like you but is becoming more fond of you.
one small heart - likes you a little
two small hearts - likes you a lot
Two big hearts - simply adores you darling!
NB: You will need to hold the sylus still for this to work. The hearts appear one after another so hold your stylus down for a few seconds to see if more hearts appear.
there is also a lady in the Pokemon fan club who will check it for you
There are certain people that tell you if your Pokemon like you are not in each Pokemon game. In Pokemon Pearl, Diamond, and Platinum there is a lady in Hearthome City in the Pokemon Fan Club (she has blonde hair) that tells you if your Pokemon like you. There is also and app. for your Poketch when you press the Pokemon in your party with your stylus hearts will appear. (Don't go into your party though it's on the bottom screen on your Nintendo DS) three hearts is the max which means it's really happy/likes you.
by making it happy u can check how happy it is in icirrus city at the fan club
Yes but it shouldn't make you happy.
One of the Pokeetches might tell you.
It means that your Pokemon had Pokerus.
You will be hugely happy :]
With the happiness checker you get in the Pokemon center in etera city.
you talk to the pokemon that is folowing you than it will tell you wether it is happy or not
If you turn around and talk to your Pokemon you can tell what your Pokemon are doing and if they are happy.
You can check a Pokemon's happiness at a game's happiness checker. Where the person is located depends on the game you are playing.
At this time, there is no such Pokemon...please check your spelling and I'll be happy to get back to you on it.
by making it happy u can check how happy it is in icirrus city at the fan club
Go to the little house in the north side of goldenrod and she will say a sentence on how happy your Pokemon is, if you want your eevee you want to here the lady say something by the lines of "your Pokemon really trusts you" or "your Pokemon is really happy!! you must be a good owner"
You can make it happy by treating it to spa.
Golbat will not evolve in Yellow version.
You can make it happy by training it a whole lot. usually it takes a Pokemon 20-30 LVs to be fully happy.
You can check your Pokémon's happiness by going to visit the man in the hut in Pastoria City. He will check your Pokémon's happiness by looking at its footprints.
you have to run around with it lots. also battle with it. those two things make Pokemon happy.