First, you must familiarize yourself with certain terms that you will come across often. These include:
In forex exchange trading, 2 currencies are traded with each other, and the movement of those 2 currencies measures the price of one currency against another. Taking the EUR/USD pair as an example, if the value of the pair increases, it means that the value of the Euro has increased against the US dollar value. And when the value of the pair decreases, it means that the value of the US dollar has increased against the Euro, or the value of Euro has decreased.
In forex trading, traders buy currency pairs with the hope that the value will increase, allowing you to sell at a higher price in the future so that you can make a profit.