meet him an island near pallet town
Chat with our AI personalities
you go back to olivine
If HM8 is Rock climb, You have to beat blue (gary Oak) then talk to Prof oak and he give you it. Blue is the 16th Gym leader
go to the next gym leader.
Go to the forth gym!
the eighth gym is in virdian city, talk to blue on cinnibar island and he will go back to his gym.