Arceus
You can't talk to your Pokemon in Pokemon Platinum. Only in Pokemon Heartgold and Soulsilver.
She talks about giratina, palkia and dialga if you go back there to the celestic ruins
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
you get defog and four other items in solaceon ruins east of solaceon.when going down the stairs near rocks, you must talk to "rocks" and sometimes you can fine stones that make Pokemon evolves.
put the odd keystone in the ruins near the lost tower in solocean. then go underground and talk to 23 people (same or different) entering the secret base between each conversation. then go back to the hallowed tower (ruins) and spiritomb will be there
You face them and press A.
No. The only games where Pokemon can "speak" is Pokemon Mystery Dungeon.
you talk to any gem leder and go talk to the man bloking the entrents and he will let you in
talk to rowan
complete the sinnoh pokedex and talk to professor rowan.
in solaceon town near the ruins to the east, in a house the mom will give it to u. also the more unknowns u catch, the more seals the boy will give u if u talk to him
Talk to Bebe in the house next to the Pokemon center in Hearthome city.