Forex (foreign exchange) trading is the global exchange of currencies — with over $7 trillion traded daily, it is the world's most liquid financial market. Traders speculate on whether one currency will rise or fall against another (e.g. buying EUR/USD = expecting the euro to strengthen vs. the US dollar).
How to start: Log in to your account > Go to the Forex section > Choose your currency pair > Set your trade size and risk parameters > Place your trade.