The Prof. Approaches You and say....
Prof.:Hello! You must be Sky! Nice to meet you. Since we are still waiting for 4 trainers, I'll show you around.
You can trade with a player by mentioning them and saying what to trade.
You can also battle with a player by doing the same thing in trading
Raid...
Hello Sky!
You have arrived in the Galar Region
You went to the wild area then saw
a wild Pikachu
Attacks will be
Dig
Pokeballs
1x Pokeball
Attack or Catch