You don't get happiness. It just evolves at Level 0. So you can evolve happiness pokemon pretty much anytime you want! Say you have a Riolu. Click on evolve and it will say this pokemon evolves into Lucario at level 0 or something like that. The same goes for Chansey, Togepi, Budew and many others. Hope i helped you well! :D
Some Pokemon games have a specific person you can talk to that will tell your Pokemon's happiness, some Pokemon games show there happiness after giving them an item the closer they get the happier they are.
a lake in Pokemon
It shows how much the Pokemon is happy with you. In some Pokemon you can evolve it if it has high happiness.
with raising the Pokemon with that Pokemon for many time You can raise your Pokemon happiness by defeating many trainers with Pokemon do you want to raise.
Maxing out the happiness of a pokemon is somewhat time consuming. Walking around with the pokemon in the lead position will help slowly increase the happiness. You can also feed the pokemon poffins to help raise stats and happiness.
well, you have to build a strong bond with your Pokemon. For example, if you wanted a blissey, it is required that you get it's happiness to go up. battle other Pokemon with it, and you might might to try giving it calcium's, vitamins, zincs, and other medicines. This will not only make it strong and happy with you, but in time give you a rare Pokemon to add to your pokedex.
If you have the happiness App. for your pokewatch thing... you can see how much your Pokemon loves you (how happy they are).
no it doesnt, Pokemon happiness does not go down if it faints anywhere.
in the lake
Pokemon lake is not an offical Nintendo game
Happiness is gained by taking care of your pokemon giving it items, training it and many more things. Once it's happiness reaches the max happiness have it level up to evolve the pokemon.
Train them by battling but make sure they don't get to faint, everytime you need to revive your Pokemon they're happiness points go down. ofc Pokemon's happiness comes back but it always slows the process of getting maximum happiness to your Pokemon. Just by walking around with your Pokemon gives them happiness. Other things is to give your Pokemon a SootheBell to hold, it gains extra happiness in every battle you've won. You can also get them a haircut in GoldenRod Underground to get some more happiness. This makes Pokemon really friendly.