Currency trading was very difficult for individual investors prior to the internet. Most currency traders were large multinational corporations, hedge funds or high-net-worth individuals because forex trading required a lot of capital. With help from the internet, a retail market aimed at individual traders has emerged, providing easy access to the foreign exchange markets, either through the banks themselves or brokers making a secondary market. Most online brokers or dealers offer very high leverage to individual traders who can control a large trade with a small account balance.

You then simply need to choose how much you wish to invest on any one single Forex trade you make and then pair up your chosen two currencies. If at the expiry of the trade the currency you have selected as the one that will increase in value, does increase in value then you have placed a winning trade and will be paid your invested amount back along with the profit for that trade.

Forex alerts or signals are delivered in an assortment of ways. User generated alerts can be created to ‘pop up’ via simple broker trading platform tools, or more complex 3rd party signal providers can send traders alerts via SMS, email or direct messages. Whatever the mechanism the aim is the same, to trigger trades as soon as certain criteria are met.
Let's say that you sell the EUR/USD at 1.4022. If the EUR/USD falls, that means the euro is getting weaker and the U.S. dollar is getting stronger. You might have also noticed the quote price has four places to the right of the decimal. Currencies are quoted in pips. A pip is the unit you count profit or loss in. Most currency pairs, except Japanese yen pairs, are quoted to four decimal places. This fourth spot after the decimal point (at one 100th of a cent) is typically what traders watch to count "pips".
The profit you made on the above theoretical trade depends on how much of the currency you purchased. If you bought 1,000 units (called a micro lot) each pip is worth $0.10, so you would calculate your profit as (50 pips * $0.10) = $5 for a 50 pip gain. If you bought a 10,000 unit (mini lot), then each pip is worth $1, so your profit ends up being $50. If you bought a 100,000 unit (standard lot) each pip is worth $10, so your profit is $500. This assumes you have a USD trading account.
Similarly, if you wanted to purchase 3,000 USD with Euros, that would cost 2,570 EUR. With a leverage rate of 1:30, however, you could access 3,000 USD worth of the EUR/USD currency pair as a CFD with just 100 USD. The best part, however, is that the size of the potential profit a trader could make is the same as if they had invested in the asset outright. The risk here is that potential losses are magnified to the same extent as potential profits.
Use a stop loss: A stop loss is tool that traders use to limit their potential losses. Simply put, it is the price level at which you will close a trade that isn't moving in your favour, thereby preventing any further losses as the market continues to move in that direction. You can also use a stop loss to conserve any profits you might have already made - the tool to achieve this is known as a 'trailing' stop loss, which follows the direction of the market.