Easy just open the bag and go to the key items pocket choose the itemfinder and it will be used however normally it will say "Nope there is no response" this means no secret items are around. By the way try using the itemfinder where snorlax used to be you will find the item leftovers and try that where Giovanni used to be in the gym and you will get a macho brace and try that where mr fuji used to be in Pokemon tower and you will get a soothe bell.
none. use the itemfinder in multiple locations in berry forest to find berries.
Simply press the A button in the direction the itemfinder is pointing to.
press A on the space
Use the itemfinder then press A.
you have to use your itemfinder and pick it up somewhere in sinnoh.
use the itemfinder and you will eventually find a lot
go to Pokemon tower on the 6th floor use the itemfinder
You can get the Item finder from Professor Oaks in Pokemon LeafGreen. Professor Oaks is found on route 11 just out side of Vermillion City.
Nuggets can be found in caves or even hidden around the ground using the itemfinder.
Use the itemfinder at the spot where mr fuji once stood at the top of Pokemon tower you should dig up a soothe bell. where mr fuji was standing use your itemfinder there
none. use the itemfinder in multiple locations in berry forest to find berries.
go to bills secret garden. use hella max repels trust me this worked. spin in a circle 360 times around the back bottom right corner of the garden. this will only work if you have the itemfinder. then once you spin 360 times use the itemfinder and there you go a mewtrance on Pokemon leafgreen
The itemfinder will point you in the direction of where hidden items are press A in that direction to find the item.
The itemfinder only works when there is a secret item around the surrounding area try using it where snorlax used to be after you woke it up and caught it/defeated it you will find an item called leftovers.
I think you have to catch 40 Pokemon or more, then go to Oak, then find one of his aids. They can also give you exp. share and amulet coin.
Go to professor oak, Talk to him, he will give you the "super itemfinder" use it when using the map
to get the treasure opn treasure island u have to have an itemfinder which u get from one of oak's scientists for having owned a certain amount of pokemon.... i think u have to have owned 40 and then go to this dude and he will give u an itemfinder