Tradeable is the term for an item that a player can freely trade to other players from their inventory. This is done through multiple ways. The most common way of trading is by right-clicking another players name and then clicking the word "Trade" on the dropdown menu that appears. The player who wants to trade an item left-clicks and drags the item into the section of the trade window that has their name over it. Usually the opposing player will click in their own money area and input an amount of money they will pay for the first players item. each player will press trade and the trading will be completed. The first player will now have more money, and the second player will have the item.