When you finished delivering the Letter to Steven in the Granite Cave, go back to Rustboro in the Devon Building and talk to the guy in the table in the 3rd floor. He will give you the EXP share.
yes
how to get exp.share in pokemon blue
If you give a Pokemon not in battle an Expshare, the half of the experience points will go to that Pokemon. If you're in a double battle, and one of the Pokemon in battle has an Expshare, 3/4 of the experience points will go to it. It's a very useful item for training weak Pokemon.
YES
go to mr stone
Nowhere.
You do not get
cave of oragin
No.
Yes
go to the bike path at eterna city
WELL for a start what is sweet world? Is it on ruby safire and emrald?WELL for a start what is sweet world? Is it on ruby safire and emrald?