The Trading Post is the only safe place to make trades with other players. Players can interact with the Trading Post to open the UI and then select the player they wish to trade with. Please make sure to mouseover and verify that the item you’re trading for is the correct item, and the correct quantity.
Trading Posts can be found at the Hub, at the end of floors in the Shadow Tower, or crafted at a Builder’s Crafting Bench using 5 Golden Souls, 150 Infinium, and 300 Shapestone.
Once both players are ready, they must click “accept.” After doing so, the UI will be closed and any items will be exchanged.