the gym leader is now at gym
There is nothing to do in your house. You can only talk to your mother and go in your room.
Talk to an old man in a house in Eterna city
go iside the house and talk to the guy
You can get pidgey in pokemon diamond by going to your friends house and talk to the mom and go to rout 229 and yous a pokeradar.
you go to lucus's or dawn's house and talk to the little girl and follow her instructions
You talk to Dawn's little sister at Dawn's house in Sandgem Town.
You must get a National Pokedex first , then go to hearthome city and talk to Bebe. Her house is next to the Pokemon center.
after you get the national dex gon to hearthome city go in the house next to the Pokemon centre and talk to the girl in their and volla!
If you are in your own house go down the stairs your mom will talk to you and when you go out the door your mom will talk to you again and you can just go out the door
You go to a house near the Solaceon ruins with the woman and the kid, and talk to the woman.
in Eterna city, you will find the Underground Man. he is in his house. Talk to him, and you will get an explorer kit.
You go to solaceon town and go down the ledges to the second house. Then you talk to the people in the house and they give you one.