you literally fall out of plane and choose where to go

you can land in a concentrated area where theres lots of loot but also lots of people and get in a fight early

or you can land in an out of the way place and try to just last to the end

theres loot and buildings and vehicles everywhere

you can be aggressive or super passive or somewhere inbetween

To really get an idea of what its like i recommend watching some streamers on twitch play, just go to twitch look under pubg and look at the guys with the most viewers and watch

i highly recommend someone like chocotaco