Trading doesnt need a gamepass. All you have to do is look at the left of the screen and youll see the button Trade. Click the button then there ar all the players and when you press a players button your trade request was sent! The opposing player can either Decline it; or Accept it;
Recently, trading has been removed then came back. After trading came back, the trading screen was now different.
After the trading screen was back, the screen of trading looked different. You can now give multiple items instead of just 4, and you dont need to click button 'Your Inventory' and 'Other Players Inventory' to see your items, and the players items. So whenever yyou want to see what the other players inventory is, just look to the left and scroll down on the other players inventory.