usually accessories for contests but you can also find berries
You can find Pamtre berries in Amity Square in Hearthome City
If you talk to your pokemon in amity square it may give you an item or there is a guy in the ruins of amity square that you talk to he will give you either some rare berries or a prop
just use your poke tech look for something that Haz a line going up and down.
friendship
both are part of the same Amity group
sorry but no you can't find any Pokemon in amity square
I think you can get items in amity square and make friends with your Pokemon
The TM43 can be found at the Amity Square in Pokemon Platinum.
You can find the TM Secret Power in Pokemon Diamond in the lower western part of Amity Square. It can be found roughly south of the man with the Pikachu.
You can find Pamtre berries in Amity Square in Hearthome City
No one owns amity square. EDIT: This is in fact not at all true, the person who owns the Pokemon Mansion, you know him? Well he's the Owner of Amity Square.
there is nothing specific you need in Amity square. It is just there as something to do besides battle
Underground or in Amity Square (i think its in one of those old buildings at amity square)
You can find Amity Square is in the north part of Hearthome city (entrances are behind gym and past pokecenter). They will allow you to take in pikachu, buneary, happiny, clefairy, psyduck, pachirisu, and driftloon before you get a national dex. Hope that helps.
no pichu cannot go in amity square but pikachu can so :p i reckon pichu is cute though
You can find Amity square in Hearthome City. Go to the contest hall then go left until you find a guy with a Pachirisu then go up
Amity Square.